92 Saturn Doesn't Start Normally-Spark Plugs Carbon Fouled


Asked by Jun 07, 2016 at 09:11 PM about the 1992 Saturn S-Series 4 Dr SL1 Sedan

Question type: Maintenance & Repair

I have a 92 Saturn SLI. It won't start normally. The engine doesn't turn over
when turning the key. If I hold down the gas pedal why turning the key I can
get it to a very hard start. I have to hold the gas down for a few seconds
and then rev the engine a little, black smoke comes out the back, but I can
get it going. However, when I stop the engine stalls. And I would have to go
through the same process to try to get it to run again.

I pulled the spark plugs and they looked carbon fouled. I replaced the spark
plugs and the car started normally and ran alright for about 20 miles and
then when I stopped at a red light it stalled out again and I had to go
through t the same rough start process again and keep fighting it at every

Is there a likely suspect for this situation? Someone suggested that the car
is running rich and it might be the fuel pressure. Does that sound likely?
What needs to be checked/replaced?

3 Answers

Paul Martin

Are you getting anycodes? Might be you idle control valve, tps throttle position sensor? Do a complete tune up change all the spark plug wires, fuel filter etc get back to us.


I removed the ECT sensor and it's cracked, which could be the cause of my problems. Tomorrow I'll replace it and the spark splugs and hopefully that solves the problem.

Paul Martin

OK good luck,!

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