Car misses while driving and idling and sometime dies while idlin
I have put my car on a machine 3 times, changed 3 sensors and it is still doing the same thing. It misses while driving it and when it is idling it misses even more and then eventually dies. It does this in gear and in park. Help!!!
Re: Car misses while driving and idling and sometime dies...
If your car is Missing while Driving and or Idling. First have the Spark Plugs changed if this does not work also change the Rubber Wires over the Spark Plugs. The car would misses worse when the AC was on and the engine power was drastically reduced. Every car need a Tune Up every once in a while check your users manual.
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check for vacuum leaks. You can do this with a can of carb spray but please be careful as it is flammable! if the ignition wires are leaking and you hit them with carb spray you will start the engine on fire!
The safer alternative is to have the engine "smoked" for vacuum leaks. This is done with a smoker. Any place that is leaking you will see smoke.
A trained ear will also be able to hear a leak.
If no leaks are found try unplugging the MAF sensor. Is is in the air tube next to the air filter box. If performance improves try cleaning it with some MAF sensor cleaner. If that doesn't work than you may need to replace it.
no its more than likely not related to the trans,if you are having shift problems though,i would have the tps(throttle position sensor) checked out.another thing to check is the vacume lines to and from the egr valve and the valve its self for proper operation.
I just had this problem on my 1996 Jeep Grand Cherokee. Once the engine got warm, after about 15 to 20 minutes, the car would just die at random times, sometimes when doing 40 mph and sometimes at idle.
I ended up changing the Crankshaft Position Sensor and it cleared the issue.
It is one of 2 things fuel pump or Crank Shaft Position Sensor. Best bet would be the Crank Shaft Sensor, and what that does is tell the computer where the crank is and when to fire the right plug at the right time
The previous solution to check the idle air contol is in the correct area but needs some clarification.
The idle control is accomplished by two parts: Throttle position sensor ( $35 at Autozone) and idle contol valve approx $190. I replaced the throttle position sensor about a week ago and it runs perfect
to date but am a skeptic after almost two years of dealer incompetance. I researched all the sensors and failure symptoms on the internet and the throttle position sensor failure symptoms matched mine
exactly. See http://wiki.seloc.org/a/Throttle _Position_Sensor