• Auto Parts and Repairs
  • Heating AC and Engine Cooling
  • Car Stalling Problems

What causes a car to stall after accelerating from a stop or idle state when the AC is on?

User Avatar

Wiki User

βˆ™ 2007-01-11 17:52:48

Best Answer

The fast idle compensator is not working, it is a solenoid that increases the engine rpm to compensate for the added load of the compressor. Also check to be sure that all pulleys are in good condition as worn bearings will also put added load on the engine.

2007-01-11 17:52:48
This answer is:
User Avatar

Add your answer:

Earn +5 pts
Q: What causes a car to stall after accelerating from a stop or idle state when the AC is on?
Write your answer...

Related Questions

Why does a 1995 Infiniti J30 stall after accelerating from stop when you AC is on?

need to set base idle and clean fuel injectors

What causes your car to stall while turning?

If the car is starving for fuel or air (low power at idle), the car will stall while turning.

What causes 2.9 engine to hunt idle and stall?

possible bad TPS, IAC, or ECT sensors

What causes a 97 Ford Taurus to stall?

A very low idle can cause a 97 Ford Taurus to stall. Another reason for stalling may be transmission bands sticking, which does not allow the transmission to come out of gear on idle.

What causes your 1997 Ford Escort to stall?

A vacuum leak or a faulty IAC (Idle Air Control) valve.

What causes a car to stall at an idle?

Check for leaks in vacuum hoses, check for a cracked or gunked up Idle Air Control valve, and check you throttle positioning sensor.

What causes a Park Avenue to run rough or misfire and stall at redlights?

Check the Park Avenue EGR valve for a clog. A clogged valve can cause a rough idle and stall at a light.

What causes a car to stall after accelerating from a stop or idle state?

What kind of car & year. Could be the idle air bypass valve. It is located on the throttle body. If you remove the hose and look in the throttle body, you can see a hole in there. Try to clean it with air intake cleaner first. Clean the throttle body with it about 25% of the can, then use the rest of the can into that hole! Do this with the vehicle is running. You may have to play with the throttle to do this. Try to keep the idle as low as possible. When done, stop the vehicle for 10 mins. then rev it up a lot and get all the black out.

What can cause the car to stall when running the ac?

An engine usually has a higher idle speed when the ac is running. If the high speed idle does not operate then the ac will cause the engine to stall.

What would cause your 1999 Pontiac Montana to stall at idle?

One thing that would cause your 1999 Pontiac Montana to stall at idle is the idle being set too low. You should raise it to see if that fixes the problem.

What causes a 2002 sable to stall and start after about 5 minutes?

If it stalls at idle or when slowing down, it could be a fuel filter. Or it could be the ignition control module.

What causes a 1994 Astro to stall on low revs and on idle speed when it runs fine on freeways and higher revs?

Possibly a stuck or sticking EGR valve.

What causes a 1991 Mercedes-Benz 190E 2.3 to stall at idle or be hard to start when hot?

Could be a number of reasons. Visit

What causes your 1988 Honda Civic to sputter idle rough and act like it is going to stall?

Bad Valves or fuel pump usually from redlining the care

What does a bad IAC cause?

the engine to stall and surge at idle

Why does a vehicle stall?

vehicle stalls - what causes this problem many probs can cause stall a bit more info does it stall a stop signs does it run fine un til you stop and take foot off gas does it idle in park or neutral and stall when put in drive also need make model year and i could help you better

Why does my 2002 mustang stall with ac on?

Fast idle motor defective.

Does an EGR valve makes a car stall?

It can if it sticks open at idle.

Why is your 1987 Chevy Celebrity stall when is come to a stop?

This sounds like an idle problem. Does the service engine light come on before the engine stalls? If it does it should post a code. Knowing what that code is could lead to a more accurate assessment of the problem. Does the engine idle ok before you put the car in gear? Does the engine restart and idle ok after the stall? There are multiple possible causes for the stall. The IAC, idle air controller, could simply be dirty and not delivering enough air for the engine to run. If the MAF, mass air flow sensor, if faulty or dirty that might cause the engine to stall. If the Oxygen sensor is faulty that could cause a stall and generally poor running as well. It may be possible that if the TPS, throttle position sensor, is faulty that could cause the engine to stall at idle speed. If you have found out what the problem is I would be interested to know for future reference.

What causes idle surge on a 1996 Buick Regal 3.8 - just had the TPS replaced due to an engine stall problem could that be related?

i dont know mine does only at idle and i think i have a weak coil for 2 and 5 on my 95. or your idle air control vacuum motor

What causes a whistling sound in the fuel tank area of 2000 caravan when idle and accelerating?

In our case (2003 model), we replaced the fuel pump which was located in the fuel tank. Easy changeout.

What causes a corvette to miss while accelerating?

Could be a number of reasons...I would begin by replacing your plugs and wires if it does not misfire at idle, then that usually means you have a cracked plug, or faulty wire.

2003 maxima high idle and small vibration when accelerating?

spark plugs and wires

What could cause a 2001 ford focus to stall at idle?

vaccum leak

What causes a Honda Civic to stall?

There can be many causes for a Honda Civic to stall. Some of them include a bad fuel pump, a bad alternator, a bad distributor, a clogged air filter or idle air valve. Buy a Honda Civic Service manual for more information. do it myself Honda civic repair