cars






 

Question by  JamieSmith (23)

What could cause my engine to miss when the A/C is on?

My engine misses when the a/c is on.

 
+4

Answer by  samman (80)

It could be your spark plugs. Take off the spark plugs and check each one for signs of corrosion or damage.

 
+4

Answer by  jay34 (250)

It could be many things. The best thing to do is go to Autozone, Advance or a Auto store and they will hook your car to a OBD code reader and that Is the 100% way to tell what the vehicles problem is. At most places there is not charge for them to pull your codes.

 
+3

Answer by  Amber40 (24961)

Chance are you have some kind of internal problem. Something like a weak ignition may be the reason for the misfire. Have a mechanic give it a look over.

 
+3

Answer by  gman36 (3)

Simply the a/c draws more power from your engine, if your engine is small (less than 2l) tnen it could miss or even stall easily, it's not a failt, it's simply that you may have a slamm engine. I recommend, switching off the a/c when going up hills

 
+3

Answer by  zepman (25)

If your motor is a four cylinder its not a miss just the extra strain on the motor that gives a missing sensation. If its a 6 or 8 cylinder then you probably have a bad clutch on the ac compressor.

 
+3

Answer by  Joey (16)

There could be a number of things that would cause this but the most common would be a worn out serpentine belt. The A/C is putting more load on the belt causing it to slip under more harsh conditions.

 
+3

Answer by  audiocupcakes (346)

First off, there is more load on the engine when the A/C is on. You might want to try changing your plug wires, cap & rotor, or the opti unit.

 
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