Question about 1989 Ford Bronco

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89 bronco stalling

When I come to a stop while driving my Bronco it will stall out but will start back up with no problem. While driving the idle races and the car either bogs down or takes off on its own. When in park the idle races and drops, races/drops, etc. Its seems to me like it is getting too much fuel and than not enough fuel. Since it is an 89 I can not bring it to autozone to get any codes. Does anyone know what the problem could possibly be.

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Sounds like you have a vacuum leak somewhere??

Posted on Oct 26, 2008

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I have a 89 bronco with a 302 in it. I went mudding and it doesnt want to go now. Runs great at idle but if I push the gas pedal it stalls. Even if I press it fast or slow it stall. Any ideas it seems to...


Might sound simple, but did you check to make sure the airfilter isn't clogged? run the car up the street without it, see what happens, another thing to try, replace your fuel filter, it may be dirty and starving the engine. Remember we are here to help as best we can, Good luck

Dec 17, 2009 | 1989 Ford Bronco

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Jun 12, 2009 | 1986 Ford Bronco

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Will not run at an idle


Try this, it is the common reason for this problem.
Here is the common cause of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

May 22, 2009 | 1987 Ford Bronco

1 Answer

I need to find the idle air control valve on a 89 full size bronco and how to replace it


in 89 they put it in 2 different locations, look on the back or side of the throttle body just under where the air filter snorkle attaches or directly behind the air filter in the snorkle itself on the engine side, many times this can be removed by removing the three screws and then cleaned, if you are having a fast idle problem this is not your problem, if it starts then dies, you're on the right track. after replacing it you will probably have to drive it for about 1/2 a mile to relearn the IAC motor by driving with both feet to keep engine from stalling

Apr 26, 2009 | 1989 Ford Bronco

1 Answer

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almost sounds like a binding on the ignition switch.
if you have to lift up the gear lever to start then its not aligned right. The switch you need to replace it not where the key goes in but its located under the dash just above the drivers knee area, on the top of the steering column. A metal bar attaches from the key area to the center of this switch and my bet is the switch is worn out.

Mar 19, 2009 | 1987 Ford Bronco

2 Answers

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try cleaning your throttle plate and iac valve

Nov 20, 2008 | 1987 Ford Bronco

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Engine stalls at stop lights and stop signs


sounds like the torque converter lock up might not be disengaging. You might also want to check for engine vacuum leaks. Does engine idle smoothly when in park or nuetral ? if the idle is good I would suspect torque converter problem.

Aug 16, 2008 | 1993 Ford Bronco

1 Answer

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If manual transmission it sound like a distributer timing problem or engine sensor problem. possible that spark plugs are fowled or coil pack is bad. Take vehical to have inspected with a code reader and get a tune up. or you have bad fuel system or fuel injection problems. There are many issue that can be causing this problem. hopefully this information is somewhat helpful

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3 Answers

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try cleaning the pcv valve then check the fuel pump and see how much pressure you have. them check the o2 senser.

May 23, 2008 | 1989 Ford Bronco II

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