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How do you check where the vacuum problem in a 1991 straight 6 ford f-150?
Wiki User
∙ 17y ago
Start at vacuum source at engine and follow line-by-line
Wiki User
∙ 17y ago
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1991 F-150 sputters at idle?
Check for a vacuum leak.
How do you adjust the idle speed for a 1991 Toyota celica gt 2.2L 4-cylinder It is running at 2000 RPMs?
check your vacuum hoses check your vacuum hoses
Why does vent and driver side defrost not work on 1991 cadillac de ville.?
Check for a vacuum leak or a bad vacuum acutated motor under dash Check for a disconnected or broken duct
How do you find a transmission vacuum modulator for a 1991 Chrysler new yorker?
The transmission in a 1991 Chrysler does not have a vacuum modulator.The transmission in a 1991 Chrysler does not have a vacuum modulator.
Your 1991 Lincoln town car will not shift out of first gear?
If a 1991 Lincoln Town Car will not shift out of first gear, the car should be checked for a vacuum leak. Another item to check is the vacuum modulator which is next to the transmission.
Where can you find vacuum diagram for 1991 ford bronco 351 windsor haynes manual does not have it?
You can find a vacuum diagram for a 1991 Ford Bronco 351 Windsor in a Chilton repair manual if the Haynes manual does not have it. You can also check with local auto stores.
Where is the check valve on 1991 Chrysler new yorker salon found?
Fuel pump check valve is on the pump in the tank. vacuum check valve is in the line going through the firewall.
How do you reset your check engine light on a 1991 Mitsubishi?
Have vehicle scanned to determine the problem
Why might a 1991 Chevy Cavalier 4 cylinder idle too high?
Check for vacuum leak or faulty EGR valve.
What could be the problem when a 1991 Mercury Capri-when first starting runs terribly till it shifts to second then runs well. You advanced the timing and it ran great then it did it again?
Check your vacuum during this, I believe this vehicle uses vacuum to determine engine load and thus shift points. If you have a medium vacuum leak it will shift funny unless the throttle is part open and even then it can be a little harsh.
Have no brake lights on my 1991 Plymouth acclaim?
Check the bulbs to see if they are shot. If that does not resolve the problem check the fuse. If that does not resolve the problem take it to a mechanical and have it checked for wiring problems.
1991 240 SX check engine light problem Why does it keep coming on and then engine dies?
Have vehicle scanned to determine the problem
