Car is not running rough no service engine soon light is on
Is your oil kind of milky looking??.. If I understand correctly, your oil level is much higher than it should be???. If this is so, you probably have a blown head gasket, a cracked head, or a cracked engine block.. It sounds like your coolant is leaking into your crankcase where your oil is.. If I'm on the right track, your problem is a serious one that will require some high-dollar mechanic work... Good luck... I hope I'm wrong..
SOURCE: 1999 pontiac grand prix . will not run
If wiggling the wires cured the code, then one of the wires is broken inside the insulation. Pull on each wire one at a time. look for the colored insulation to stretch, this will be the broken wire. For the other car that wont rev up, this is a common when the catalytic concverter is plugged up. This will also cause MAF codes, and in turn, TRAC OFF light.
See http://www.greatautohelp.com
SOURCE: Engine coolant temperature is lower than thermostat
This happens when the Engine Coolant Temperature (ECT) does not reach 75°C (167°F) despite sufficient engine warm-up time.
This happens usually when the thermostat/temperature sensor is faulty, and is bad for emissions and fuel consumption.
The
repair cost may vary, even if themperature sensor is not an expensive
part, after replacing the sensor there is need to reset the ECU (car
computer module).
SOURCE: Engine running really rough...whine sound when it isn't.
The run rough problem is due a cyl.mis firing,it becaused buy a bad plug,plug wire,coil,or even the ing.module. the servive eng.light flashing is warning you that you have a cyl.misfire that can cause damaget to your catltic converter if you continue to drive it.with may lead to why you think you have a exhaust problem,it may be colgged.
SOURCE: Grand Am 2003 "service engine soon" light
The service light means something is wrong with the car and it needs attention now. Get the codes checked and that will tell you what is wrong with it.
SOURCE: running rough, no power misfiring
i had that problem once. when i got under half a tank of gas in the tank. What i did was i dumped one bottle of gas line deicer in the tank and i have never had it agian. you may have some water in the tank. from condasation or i have a stong feeling i got my water from the gas station. i was using the same station all the time. so i tryed another gas station and so far no more rough idleing which was caused by the water i think and i am getting better fuel milage to. i hope this helps.
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