Service engine soon light on. 1999 Pontiac Grabd am SE

Asked by May 19, 2017 at 05:08 AM about the 1999 Pontiac Grand Am 4 Dr SE Sedan

Question type: Maintenance & Repair

What could it be? We just replaced the crank
sensor, starter, alternator, fuel  pressure regulatory,
battery was good still, front brakes, rear wheel
cylinder both. Replaced oil gasket with new also
change the oil with new oil and filter, replaced
coolant temp sensor, PCV Valve, the medal part that
is on the PCV valve. That runs from the PCV valve
towards the back of the engine. All new 4 tires. Still
a little rough idle, as well runs a little rough until it
warms up., o2 sensor not long ago, the one behind
the engine.

2 Answers

Service engine soon light on. 1999 Pontiac Grabd am SE What could it be? We just replaced the crank sensor, starter, alternator, fuel pressure regulatory, battery was good still, front brakes, rear wheel cylinder both. Replaced oil gasket with new also change the oil with new oil and filter, replaced coolant temp sensor, PCV Valve, the medal part that is on the PCV valve. That runs from the PCV valve towards the back of the engine. All new 4 tires. Still a little rough idle, as well runs a little rough until it warms up., o2 sensor not long ago, the one behind the engine. 1999 Pontiac Grand Am 4 Dr SE Sedan Maintenance & Repair

Service engine soon light on. 1999 Pontiac Grabd am SE What could it be? We just replaced the crank sensor, starter, alternator, fuel pressure regulatory, battery was good still, front brakes, rear wheel cylinder both. Replaced oil gasket with new also change the oil with new oil and filter, replaced coolant temp sensor, PCV Valve, the medal part that is on the PCV valve. That runs from the PCV valve towards the back of the engine. All new 4 tires. Still a little rough idle, as well runs a little rough until it warms up., o2 sensor not long ago, the one behind the engine. 1999 Pontiac Grand Am 4 Dr SE Sedan Maintenance & Repair

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