Question about 1989 Ford Bronco II

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Bronco 2 is idling rough and stalls at the light on occassion.

It is increasingly getting worse and I need to know what would be the first thing that I should do.

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First thing to do is change the fuel filter, if that don't help any, than a fuel pressure test is in order.

Posted on Feb 10, 2009

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Starts and stalls - mostly when engine is warm.. on occassion the engine would run rough when it's idling down at slower speed and then the engine would run run - similar to start up's.


your ignition coils packs are getting bad as well as it needs a tune up (spark plugs, wires) if those are not the case then its computer related issues.

Sep 02, 2010 | 2000 Pontiac Bonneville

1 Answer

I have a 89 bronco 2 with a 2.9 engine. I have


Try replacing the Throttle Positioning Sensor
Have the codes checked
You may need to clean the Mass Air Flow Sensor
this is best done by a professional as it contains some very sensitive wires and they are easily broken
The MAF is very expensive to replace

Mar 29, 2010 | 1986 Ford Bronco II

1 Answer

Two things: The car will not idle...it runs fine


It might be the IAC to test it while at a low idle which you might to hold the gas pedal a little since it is stalling...turn on rear defroster if you have one, or A/C and if the IAC is doing it's job the rpm's will increase some. If it doesn't increase, but wants to get worse...that might be a good part to replace which is on the throttle body.

Oct 04, 2009 | 1985 Nissan Sentra 2 Door

2 Answers

My daughter ford bronco 2 keeps stalling.


Automatic or Manual transmission?

Jun 12, 2009 | 1986 Ford Bronco

1 Answer

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

Rough idling and poor fuel economy on 92ford f-150


This whole problem is most likey due to a sludged up intake and idle speed control valve, do the following procedure and it should take care of the problems, also run a couple of cans of LUCUS brand fuel injector cleaner through, I know u will see it is more expensive than other brands, but the thing is it works!
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk 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

Mar 13, 2009 | 1992 Ford F150 SuperCab

1 Answer

Rough idle/stall


i would start with the TPS ( throttle positioning sensor ).

Nov 11, 2008 | 1997 Chevrolet Camaro

1 Answer

Rough idle stalls at low rpm's


hello first check your idle with the car running foot on brake see were your rpm reading is if your below 500rpm check your label underhood for your curb idle setting second see if theres a adjustment screw you can increase were your gas cable lever rest against your set screw underhood if you feel confident enough remove your iac motor idle air control valve if the bore were the end of the pintle extracts out to close has varnish builup our carbon it will stick creating vacuum leak type senario causing stalling rough idle sometimes even no start conditions good luck

Sep 14, 2008 | 1988 Honda Accord 4 Door

1 Answer

Idle problems


Could be a few things, EGR valve needs replacing, or the fuel pump and fuel filter,

Jul 12, 2008 | 2004 Chevrolet Silverado

1 Answer

BRONCO 2 TROUBLE


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

Jun 03, 2008 | 1989 Ford Bronco II

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