Fuel System Won't Start Not applicable Not applicable
Q: I was driving and the truck just died. I think I've narrowed it down to the fuel.
There was no power to the fuel pump in the tank so I thought it might have been the fuel relay, which I then changed, and also made sure the fuel button under the dash was ok.
Checking for power in the wires on the relay, I touched one of them and I guess it grounded. I heard the fuel pump on the chassis rail start running, so I tried to start it. No luck. Also changed the fuel filter, and still no good.
I'm confused why when I was touching the wires with the test light it started working.
Someone said it might be the ignition, but who knows. Please HELP!!
A: Wires by the fuel pump relay probably have IGS corosion. Check all these wires carefully.
Q: How do you know when it's time to change the 02 sensor on your truck?
A: Regular maintenance is 50K miles. If system is scanned with computer device and the sensor does not switch voltages (lo to hi mv ) it's also time to change it.
Drive Train / Driveline Vibration When accelerating Always
Q: It feels like entire driveshaft is shaking when usually driving on freeway. This normally happens when I'm accelerating between 60-70 miles per hour. Sometimes it happens at other speeds, but usually 60-70.
Also it seems to shift really "hard', almost like it sticks and then shifts gears. (94 Ford Bronco 5.8L Automatic transmission)
When the vibration occurs it looks like the RPM's are to low for the gear it's in. Kinda like starting a manual out in 2nd instead of 1st.
A: It does sound like the driveshaft threw a weight off and is out of balance.
Windows / Glass Malfunction Happens always Not applicable
Q: My back glass went down and it will not go up, I think the motor is bad, how do I get to the motor if the glass is down or how do I get the glass out. I can't get the glass up to replace the motor and I can't get to the motor with the glass down. So what do I do, Need to do it myself because I am a starving college student.
A: Remove the inside panel.You can disconnect the glass and lincage from the motor and then work on the motor. Ed
Q: The window goes down but wont come up the motor wants to come up but cant. We got a new motor but dont know how to install it can you tell me how.
A: you nee d to remove the door panel,drill out rivets holding in the window track,secure window in the up position,remove track and install new motor,it takes about an hour
Q: What does it take to replace the fuel filter? The "Haynes" book says to remove the clips and pull the braided stainless steel fuel line off the filter. I can't get the fuel lines to come off. It's a 5.8L EFI.
A: Pull the plastic tab clips and the lines will come off. Ed
Electrical / Lighting Systems Malfunction When driving Always
Q: Cruise cotrol stopped, and speedometer stopped as well as as odometer all at the same time.The torque converter lock stopped working and the trans mission shifts hard all happened at the same time. the tranny has plenty of clean fluid,
and works well thru all gears
Q: the rear window on my 91 Ford Bronco,full size,will not go down,when the down switch is activated. I have checked fuse's all are ok. is there perhaps a in line fuse.
A: Sometimes if our tailgate isn't shut all the way on our 90 Bronco & the rear window is up,we push on the tailgate to make sure it is closed completely & then the window will work again.
Q: The power window went down and won't go up. I took off door panel and found what looks like a rubber washer or bushing split in two pices.
I would like to know how to fix it and what the part is and where it goes. Thanks
A: Does the motor still want to go up??...
If not, then you must still deal with the motor problem.... look around inside the door panel cavity and see if any shiny or clean marks are possibly where the rubber came from.... maybe it was left inside the door from a previous repair???
Heating / Cooling System Malfunction Happens always Always
Q: When I turn the AC or the heating system on, the air only comes out at the window defroster (front window) no matter where the selector switch is set. I know it has something to do with the vacuum because if I reach under the passenger side dash I can push the little plunger type thing in and I get the air to comeout thru the vents. Can you let me know what broken so that I can fix it?
Thanks
A: You are correct about the vacuum. But you now have to find out if it is a lack of vacuum to the device, or the device itself (as in a "broken diaphram"). Ed
Windows / Glass Malfunction Not applicable Not applicable
Q: The rear window is stuck down. I need to know how to relase window to get to the drive motor.
I have worked on side windows without problems but can't get to motor, etc. in tailgate with the window stuck down. thanks
A: Disconnect the glass and channel from the linkage. Ed
Chassis / Suspension & Steering Upgrade Not applicable Not applicable
Q: I want to put a 4 inch suspension lift with 35s on my truck.
I have 33s on it now, with no lift.
I was wondering if i could put the lift on myself, and if so, how? and how long would it take?
Q: I have a 1990 Ford Bronco Full Size 351 V8 5.8 EFI. The problem I have been having is with oil entering the air filter by the crankase ventilation hose that goes from my valve cover to the air cleaner housing. It is supposed to be taking air from the air cleaner but it is blowing oil into it making my air filter get soaked with oil. Any suggestions? Please Help,
Thanks.
A: Check your PCV valve and hose for blockage,If OK then you probably need a valve job.
Q: My Bronco with a 351W, with EFI runs fine most of the time. Every once in a while it acts like it's going to die and sometimes does.
This is after it has warmed up. It starts chugging. Idle drops from 1000 rpms to 600 then staggers down and then back to 600 rpms.
I have to give it gas to keep it idling. After a minute or so it smooths out and runs fine.
Then the whole thing starts over a few minutes later, sometimes it does not do it again until I turn it off and come back hours later to drive it again. It acts the same way in the morning, when it's cold.
A: Remove and clean the idle air control motor and chanel... disconnect the negative battery cable for 1 minute and enjoy driving again.... Ed
All Part Groups Other Not applicable Not applicable
Q: Just had '89 Bronco re-done. Put new cab on the truck, which turned out to be a '94.
Having all sorts of problems lining up the steering column, and trying to cover holes in firewall, floor and door areas as the holes are larger than the '89.
Any solutions? I have my own thoughts like grommets, but nobody wants to listen.
Thanx,
Darlene
A: I think your solutions are correct, so if no-one will listen..... and especially if they charged you to do the install....... tell them you'll need to rent a car at their expense while they solve this problem for you..... see if that gets their attention....... Ed
Q: The fuel pumps don't run when you turn the switch on. I ground the fuel pump terminal on the diagnostic data link connector and the pumps worked. The circuity from the fuel pump relay to the EEC-IV module checks out good. Then I replaced the EEC-IV module still it won't start.
All Part Groups Malfunction When driving Not applicable
Q: Hi, my speedometer quit working, so I installed a new cable, and now it works partially.
It doesn't work when I start off, only when I let off on the gas. It comes up to read a mph and jumps around. It works with accelleration at the higher speed but still jumps around.
A: this could happen if the speedometer gear in the transmission is bad you shoul have an expert look at it. before you do that if youre vehicle has cruise control. you should check your cruise control box to see if it's bad that is something that you can check yourself.
disconnect the speedometer cable from the cruisecontrol box and turn the cable with your hand have a friend look at the speedometer while you're doing this if it does move find a cheap replacement for cruisecontrol box from a junkyard to see if it helps before you invest in a new one.
this happened to my car too.
Q: My Ford service book says that I have to remove my radiator to remove my timing chain cover. I am wondering if this has to be done or if I can remove the cover without removing the radiator. Thanks
A: Leave the radiator in. It doesn't need to come out.
Q: When in 2 wheel drive, is my front drive shaft suppose to turn like my back drive shaft? or are my hubs messsed up?
When I acclerate, it does the same as my rear drive shaft. But the hubs are unlocked and it is not in 4 wheel drive.
A: If the hub are unlocked you should be able to turn the shaft by hand when parked, and it may turn alittle just from rotating motion in transfer case,
normal
Q: 4.9l v6 just rebuilt.
There is a gas smell and when hot, as I accelerate it hesitates and misses.
Have replaced the wires, distributer, coil, EGR valve.
Can't figure it out??
A: Check for a leaking / defective fuel pressure regulator.
Q: Oil pressure gauge reads low, to the point where it seems like there is no pressure at all, even though oil level is full.
What could be the cause of this?
A: Oil pump pick up screen could be plugged. Engine could be severely worn. Idle could be to low.
It is best to hook a mechanical gauge to engine to get definitive pressure readings, as dash units can be inaccurate.
Q: When vehicle gets hot it will stop running feels like has run out of gas. After about 45 minutes it will start and run again for awhile until it gets hot again.
A: Could be vapor lock. This happens when gas vaporizes in fuel line, causing interuption of fuel flow...
A: There are two different sizes. I went through the same thing when i replaced my tank several years ago. Call around the part stores sooner or later there will be someone who knows. This is a commonly replaced part on broncos.
Q: 1989 Ford Bronco, V8, Runs good, When I accelerate from a dead stop the truck does well. when i reach cruising speed, let off the gas a little and then press it a little to gain some speed, the truck hesitates and vibrates. But if I push the pedal to the floor the transmission shifts to a lower gear and the truck does well. Hooked up to a computer and no trouble/problem codes were given.
A: If you have a 2 bbl carb. the accelerater pump in the carb may be going bad. Rebuilding the carb should fix the problem.
Electrical / Lighting Systems Malfunction Happens always Not applicable
Q: My rear windshield switch will not work. It seems that it will work with the key in the tailgate until I use the dash switch. Then nothing will work.
A: Try pushing in firmly on both sides of tailgate to make sure it is completely closed. Got a 90 Bronco, happens occasionaly.
Q: I ran out of gas. I put $10.00 of gas in the tank. I let it sit for about 15 minutes. It started right up and then died about 1 minute later. Then it wouldn't start again. Did I blow the fuel pump? The engine turns but it won't catch?
A: does it sound like the starter is engaging? if so check your fuel filter and fuel pump. cause when you run out of gas, all the sediment thats collected over the years, gets sucked up the lines.
Drive Train / Driveline Chugging When driving Always
Q: The truck runs ok between 35-45 mph. But
it chugs and jerks when acclerator is
pressed to go faster. What is the problem?
A: Possible plugged exhaust convertor..... or could
be the timing chain with too much movement.
Also a fuel filter restricted would also be
a problem for you....
Drive Train / Driveline Other Happens always Always
Q: There is a leak of transmission fluid from between the gear box and the extension housing on a 5 speed overdrive manual transmission. I have tried permatex previously and it did not work? There is no manufactured gasket for this location. I have also tried a hand-made fiber gasket. Nothing has worked. How do I stop this leak?
A: Black silicone....... and read the instuctions carefully about curing during..... Ed
Drive Train / Driveline Malfunction Not applicable Always
Q: The car starts and sounds good but will not move when shifted into any gear. To include all forward gears and reverse. I was told that it would need a new clutch. Not knowing anything about cars I thought it was the transmission.
Electrical / Lighting Systems Other Happens always Always
Q: The rear window will not go up or down. I have studied it for about 2 hours and I cannot figure out how to get the window down in order to open the tail gate.
A: If you remove the inside panel and disconnect the motor from the linkage, can the window move down then? Ed
Drive Train / Driveline Malfunction When driving When warm
Q: HI my engine light comes on most of the time in 3rd gear. It flashes at about 2000 rpms and at about 3000 rpms it just stay on?? and I have another one for you I can be driven down the HW or just in gear in 2/h and almost with no effort it will shift in to 4WD..and I have also noticed that when I do stop and lock hub if you don't have it in just the right spot it does not like to go in to gear sometimes I can hear it popping or teeth slipping sound.and wail I am at it. why is it that I can be stopped and put my truck in to neutral then in to drive or reverse my RPM gage will go up be for droping in to gear..if you can answer any of those I would appreciative JD
A: Sounds like you may have a intake gasket leak if the rpm's go up when changing gears.
With the engine light you must put it on the computer to see what code it is.
And your hubs might be wearing out, with your 4x4 problem
A: You first need to remove the upper manifold,It has the breather tube from the air box attached.The injector rail can then be removed,it has 2-8mm bolts on each side.Take a small screw driver and relieve pressure at the line,When reinstalling injectors spray wd-40 on the sealsto make installation easier.
Q: How difficult and how expensive will it be to drop a 302 engine into a 1987 Ford Bronco II? -- Josh
A: Josh..... the 2.9 v-6 is scarce as hell and expensive too.... yet people pay and wait.....
This tells me that it's a lot more trouble and a lot more cash to upgrade to a 302..... which are plentiful here...
A 2.9 V-6 is a 2500.00 hit in my part of the world.... for a used engine installed..... Ed
Q: My rear power window is having massive problems.
When I bought the Bronco about a month and a half ago the window pretty much worked fine, but it's progressively gotten worse.
Now it won't go down or up unless I physically help it with my hands. All the time the motor is churning away like it's really doing it's job. I opened the tailgate panel and observed (without dissasembling) that the gear on the motor engages window-channel mechanism, but it simply won't power the window anymore.
Any suggestions? Do you think maybe the window spring is worn out and needs replacing?
A: The motor has a internal gear set that needs replacing.
Ignition System Won't Start When starting Not applicable
Q: I have an 87 Bronco & when I turn the key all of the accessories come on but there is no action by the starter also even with the key on I can not shift the truck out of park.
I changed the ignition switch ( the key insert) but there was no change.
There is plenty of battery & I do not her any sounds from the starter. Also the ignition does not feel quite right, like the swich isn't all there.
A: The lock cylinder that you replaced is connected by linkage to a electrical ignition switch on your steering column. This switch is known to come apart. It is plastic mounted to a metal base with small tabs that hold it together. If you replace the switch it should solve your problem.
All Part Groups Malfunction Happens always When cold
Q: The truck started to chug and stall out.
Most of the time, it would start back up, but then it would die right afterwards.
I replaced the ignition module, which I thought worked, but a month later, it started happening again.
Both times, it was very cold. When it ran for the month, after replacing the ignition module, it was warm weather.
A: The weather may be a factor, but 1st.... new module or used module?....
You may have bought a similar problem along with a used module...
Is this the module type that looks like a dull aluminum box with 2 or 3 plugs to it?....
If so, these are a problem; you should keep a spare with you anyways .....Ed
Q: When cold or wet, it misses and bucks. Is also extra hard on gas (302 EFI). Engine has only 30000Kms on it (rebuilt).New plugs, wires, cap, rotor, o2 sensor, muffler, tp sensor ........ HELP!!!!
A: Cheap ignition wires. Open the hood at night when raining and watch the light show. Ed
Drive Train / Driveline Malfunction When driving Not applicable
Q: When driving on highway- truck would, at about 45ish, start to whistle and wouldn't shift into next gear. Its an automatic.
A: Change your transmission filter and the shift module on the transmission. Then take it for a test ride for about 1/2 hrs worth of work and it will then be a lot better.
Electrical / Lighting Systems Malfunction Not applicable When warm
Q: The truck went dead. No power no lights. Checked the battery, was fine. Not the solenoid. Changed battery cables. I don't have a clue!!
A: Joann,
It sounds like some major electrical "short" occured and the master fuse link (on the positive battery cable) simply "blew". If you have a voltmeter you can check between the + battery terminal and the solenoid for voltage, it should read around 12 volts.
Oh, as I was writing this, I remembered a Ford Maverick I used to have that did the same thing! Turns out the negative battery cable was loose where it attached to the engine. Might be worth a look.
Q: After starting, there is a very distinct smell of gasoline coming from the engine.
Every once in a while it will hesitate while driving (on aceleration).
What could be causing this ? I have an efi system. Thank you.
A: These Broncos had fuel leak problems along the fuel rail and injector seals because of placement on the top of the engine... heat buildup.....
It's difficult to find because it evaporates almost as fast as it leaks.... Ed
Heating / Cooling System Other Happens always Always
Q: On the panel controls for heat, defrost, etc. I only get air out of the panel. It's winter and I need to get my defroster working. Can you tell me what I might do to fix it? It is vacuum controlled. Mike
A: If there is vacuum to the control device that switches the mixing door. Change the device. Ed
Q: Yesterday, I noticed a loss of power and some hesitation on hills. When I opened the hood, there was oil everywhere. The air filter was soked and the housing had standing oil in it.
I assume the oil was causing the power loss, but why is it comming out the breather pipe and PCV valve?
I have the 4.9 inline 6 and have removed the smog pump and most of the emissions items as they are not required here.
The catalytic converters are still in place, but the small pipe that ran to the smog pump is just open.
What is causing my trouble and what should I do to fix it?
A: Sounds like your loss of power could be because you are losing compression through the valve train, this could be causing oil to go out over the engines topside. Get a compression test done.
Chassis / Suspension & Steering Won't Start When starting Always
Q: I have tilt steering in my 85 bronco XLT. with the wheel tilted all the way down the ignition switch works fine. any other position and the switch will turn but, will not start. I looked through the Ford sites to see if there was a recall on any of the steering components. I talked to someone who said they also had a simular problem.
A: Check the ignition switch. It is either out of adjustment or needs to be replaced.
Q: I hear a squeaking sound under my bronco. I have inspected the bushings and the shocks and though some of the bushings apear to be worn, i cant locate the squeak. any suggestions?
A: Kevin,
Check (and if possible, lube) the upper A-frame bushings in the front. You didn't indicate where on the Bronco you were hearing it but A-Frame bushings are pretty typical of squeaking.
Good luck and happy motoring!
Ignition System Malfunction When driving When warm
Q: my ignition in the stering collom does'nt work
i turn the key and need to shake the wheel to get the truck to start,
how do i remove it?
A: There was a recall on the ing switch but i think it only went back to 1988,that could be your problem,lower column and check,there is also a rod that runs from the key switch to the ing switch,that rod is prone to breaking,remove steering wheel and take off horn assembly and remove steering wheel,you will see what to do from there.
Q: There's a vibration coming from the rear, and the u joints are good. The the drive shaft has no dent's or dings in it.
It goes away after about 75 mph.
What do you think the problem is?
A: A guess from here..... Is any part of the exhaust touching the body or frame??... Ed
Q: Blowby. Crank case pressure
I've replaced the rings in this 302 because I was under the impression that this could be the reason for my head ache. The engine runs fine. But has minimal power, when warm the rpm is limited also. My problem is that it seems to be building an excess of crankcase pressure. If you place your hand over the pvc hole, it will almost blow your hand off. Oil pump? It runs a constant 50 lbs even when warm.
A: How about plugged exhaust or catalytic convertor ??
All Part Groups Malfunction Happens sometimes When warm
Q: My '84 Bronco has a first gear granny. So, therefore I start of in actual 2nd gear. I release my clutch to get going, give it some gas, like I always do, but now it acts like its going to stall.
The Bronco throws forward as if I poped out the clutch. Then I will push the clutch all the way back in and then it will start idling. Now, it has been missing intermittently, and is getting worse.
Going down the road in 4th gear it sometimes studders along, as if it was on a bumpy road.
I have changed the thermostat thinking of overheating maybe.
Then Spark Plugs... it still acted like Spark Plug Wires... still acted up, and has gotten worse...
Now, what? Is it my Timing? My Automatic choke is not sticking from what I see. What is the correct timming for an 84' Bronco.
Out of the factory I beileve that it is at ZERO. But where I live I am in high Elevation, and was wondering if that had anything to do with it. Please let me know.
Thanks,
84' Ford Bronco
A: High elevation will lean the mixture. Also an engine miss will show up under these conditions. My guess is plug wires. Ed
Q: I am replacing my original 302 with a new 351W. Will my harmonic balancer and flywheel from the 302 fit my 351?
A: I would not use the old harmonic balancer. It may not be the correct weight for the 351.
All-Parts direct you to a yard that will have one from a 351 that would be more appropriate, and less likely to cause warping of your crank over time, leading to failure and engine damage....
Q: When ever I am coming to a stop and step on the brake pedal I hear and feel the brake calipers pop. It makes a ping sound and I feel it on the pedal. I can hear it on both left and right sides. I thought it was bad calipers so I replaced them, it didn't make the noise for a couple of days and I thought it was cured, but it is now making the ping noise again on both sides. Please help. Tom
A: It sounds like Upper and/or lower control arm bushing are bad...also have technician ck trailing arm bushings...
Thanks,
Dwayne
Drive Train / Driveline Malfunction When starting Always
Q: My four wheel drive will not engage. I think the spindles are broken on the axle. What do I need to do? Runs fine when not in 4x4 mode. Also when 4 wheel drive is engaged I hear a clanking coming from underneath the vehicle.
A: If you put it up on stands and run it, you will see the clanking part. Ed
Q: Our 1981 Ford Bronco began a problem one month ago. Driving normally, the engine would fade and stop and then could not be re-started. After a waiting period of several hours it would start again but the problem would reoccurr after the vehicle was parked for a while and you went to start it. We took it to a Ford dealer and they stated the alternator was fine. Seems there is spark but no fuel at ignition point. Tied it to a fuel supply problem. We have rebuilt the carburator, replaced the battery, replaced the fuel pump, replaced hoses, belts, spark plugs, fuel lines, etc.
We have spent 1600.00 and still climbing. Is there a sensor or a check list of issues that should be checked in an orderly process of elimination to get to the problem you could suggest?
After each repair, it works for a day and then it happens again. This has happened three times.
1200.00 of the 1600.00 was for an engine rebuild.
A: Yikes.... pick up a spare ignition unit..... the square aluminum box with either 2 or 3 plugs connected to it.....
Click a blue Buyers button on http://www.all-parts.com.....
And the next time it quits, plug in the new box and see if it runs..... Ed
Chassis / Suspension & Steering Other Not applicable Not applicable
Q: I'm looking for a wheel stud manufacturer that
uses 3 numbers and the letters ABN on the back
of their studs for a custom application.
Can you help me?
A: Probably a Mag wheel manufacturer would have this info for you.... Ed
This way to the live technicians