Question about 1991 Ford Bronco

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My 91 bronco Automatic 4x4 w/ 5.0 engine rough idles when stopped at traffic and cuts off it also tugs as im driving it I changed spark plugs (motorcraft Cooper) changed spark plug wires changed pick up coil, ignition coil,cap & rotor new fuel pump and filter cant buy a bucket please help

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Throttle position sensor.

Posted on Sep 08, 2010

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What can I do to fix my 1988 Ford Bronco xlt with a 351 engine that has rough idle and loss of power when in drive?


Fuel filter. Low fuel no power. Catalytic converter. no air out, no air in. loss of power.

Jan 25, 2015 | 1988 Ford Bronco

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Will start but wont stay running after spark plugs been changed


u shud change all the plug wires and the distributer cap-if has one--the surge probly comes from a vacuum leak or throttl area-maybe a tps or idle motor issue---get a repair manual like a haynes in zone or find a good private mechanic hoo can test drive it and du a scan on the computer system

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91 taurus idles slow and runs rough when cold


spark plugs work better when theyre hot so change spark plugs,

Nov 25, 2013 | 1991 Ford Taurus

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My 1986 ford bronco II spudders when I drive it. Idles a little rough to.


How many miles on it?

Have you changed the Spark plug Wires and Spark Plugs recently?

Dec 24, 2012 | 1986 Ford Bronco II

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P0300: SOMETIMES rough idle, shake a lot OR less power above 50mph then got this code


Spark plugs in your car are good for 100,000 miles. try changing fuel filter and add a can of B&G 44K fuel additive. This stuff is the best on the market and only available at dealerships. It conditions fuel pump and injectors, also absorbs water in fuel (methanol). Try this first, your car is too new for any other problems. this should help drivability and fuel mileage. If Nissan does not have B&G, I know Toyota does. Also stay with 91 octane fuel. Check oil and coolant often. do not risk overheating in traffic, watch your gauges......

Feb 28, 2017 | Nissan Sentra Cars & Trucks

1 Answer

2004 Dodge Dakota V8 that is Idling very rough and the engin stops at times, and the automatic transmission is also not shifting smoothly.


transmission probably needs fluid and filter change. as for the the engine not running smootly, it may be in need of a tune up, you know, changing air filter, spark plugs, spark plug wires... or it could be a weak fuel pump.

May 28, 2010 | 2004 Dodge Dakota

1 Answer

1999 nissan frontier is idling rough the truck shakes but shaking stops when the air is turned on. changed oil, spark plugs, spark plug wires and distributor cap.


This can be your Idle control valve, when you turn the air on it puts the engine under load and your computer will increase the idle automatically to prevent the engine from cutting out.
When you are standing still and the car is shaking, by touching the accelerator very softly does the shaking stop? If so check the idle control valve.
I hope this will help.
Regards
Sam

May 13, 2009 | 1999 Nissan Frontier

2 Answers

91 honda accord cut off


Here are the most common causes of surges, stalls at stops, low 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

Apr 06, 2009 | 1991 Honda Accord

4 Answers

Nissan b14 rough idle, black smoke


i have a nissan b-14 idle roughly sometimes cut off when in traffic. any solutions???????

Oct 03, 2008 | 1996 Nissan Sentra

1 Answer

91 ford festiva engine prob.


Hi there. First make sure that your engine is idling fast enough. If the idle is too low (below 750rpm), it is likely to stall on idle. You should also check for vacuum leaks around the intake manifold and associated black rubber hoses. Some people use carb cleaner spray to spray around the hoses and seal areas to check for leaks, because the engine will speed up if a leak is found. I rough idle can also be caused by a bad spark plug wire or fouled spark plug or even a overly rich or lean idle fuel mixture. So remove the plugs and check that the plugs are burning clean (no black soot or glazing). The plugs should be near white clean. If you find a bad plug, then follow the wire back to the coil. Verify wire is good such as testing with an ohm meter and comparing the reading to the others. A big difference would indicate a problem.

Sep 27, 2008 | 1993 Ford Festiva

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