1999 Pontiac Sunfire Repair Question
Topics covered: Coolant, Blue smoke, Bubbles.
Mileage: 107,000 miles.
Mileage: 107,000 miles.
Asked on October 21, 2011
#1 cylinder spark plug is oil soaked and causing misfire. what could cause this?
1. checked compression, #1 cyl. 200-205 psi, the other 3 were all 210 psi. -ok
2. do not see coolant in oil.
3. check coolant reservoir open and cranked. did not see and bubbles come out.
4. listened for all fuel injector clicking-ok.
5. removed injectors and ensured they functioned properly by pressurizing each and running carb cleaner through them.-all ok.
6. all injectors read 12.6 ohms.
7. could it be the valve stem seals? is there a way to check without removing cam blocks?
removed and checked all
2. do not see coolant in oil.
3. check coolant reservoir open and cranked. did not see and bubbles come out.
4. listened for all fuel injector clicking-ok.
5. removed injectors and ensured they functioned properly by pressurizing each and running carb cleaner through them.-all ok.
6. all injectors read 12.6 ohms.
7. could it be the valve stem seals? is there a way to check without removing cam blocks?
removed and checked all
Asked by mpsadowski@aol.comAnswer
Replied on October 21, 2011
I forgot to mention that I did pull the tower off and checked for spark at each plug to ensure all plugs were firing.
Replied on October 26, 2011
Could be a valve guides/stems/seals-the engine will emit blue smoke when 1st started then vanish is this happening?
Replied on October 26, 2011
I don't know. Right now I have things disassembled with the fuel rail and injectors removed.