bad piston ring question...neep help asap - TriStateTuners.com :: Home of Tristate Auto Enthusiast

deadone000 · 01-08-2007, 11:50 PM

i think i have a bad piston ring since i found oil overflowing in only 1 of my spark plugs....can this case a car to crank but not fire??and does any1 know a good place in the ewing/lawrence area that will do a compression and leakdown test or if it can be by myself to be sure if its a bad ring or headgasket??

Honduh · 01-10-2007, 04:40 PM

what do you mean its over flowing? are you sure its just not a plug gromet/valve cover seal leaking oil into the spark plug tube?

And no if only one plug is being saturated with oil I can't see it causing an extended crank. I'd look more towards the fuel system, or ect for that.

A bad Ect can cause the car to thing its always cold and be adding too much fuel at start up, and vise versa.

Or it could be a bad check valve in the fuel pump allowing fuel to return back to the tank and the car has to rebuild fuel pressure to the rail every time. A bad fpr could cause that as well if its not blocking the fuel from returning. Possibly a fuel filter as well.

First thing I would check is fuel pressure. Start the car up and let it build pressure, once its all the way up shut it off. If pressure drops suddenly then you are on your way to finding your problem.

05CGMSTi · 01-11-2007, 05:36 PM

It's probably a bad spark plug tube seal. Pull the valve cover off and check it. Easy fix.

Honduh · 01-11-2007, 05:52 PM

A single sprak plug soaked in oil will not cause the car to not start or an extended crank. If anything it will cause a missfire on that cylinder.

01-08-2007, 11:50 PM	#1
deadone000 Tri-State Aficionado Join Date: Jan 2006 Location: trenton nj Member #1255 iTrader: (0)	bad piston ring question...neep help asap i think i have a bad piston ring since i found oil overflowing in only 1 of my spark plugs....can this case a car to crank but not fire??and does any1 know a good place in the ewing/lawrence area that will do a compression and leakdown test or if it can be by myself to be sure if its a bad ring or headgasket?? Last edited by deadone000; 01-08-2007 at 11:52 PM.

01-11-2007, 05:36 PM	#3
05CGMSTi Tri-State Aficionado Join Date: Feb 2006 Location: Coatesville,PA Member #1488 iTrader: (0)	It's probably a bad spark plug tube seal. Pull the valve cover off and check it. Easy fix. __________________ Currently driving: '07 LGT 5MT '05 OBP Forester 2.5XT

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01-10-2007, 04:40 PM	#2
Honduh Tri-State Post Whore Join Date: May 2006 Member #1977 iTrader: (0)	what do you mean its over flowing? are you sure its just not a plug gromet/valve cover seal leaking oil into the spark plug tube? And no if only one plug is being saturated with oil I can't see it causing an extended crank. I'd look more towards the fuel system, or ect for that. A bad Ect can cause the car to thing its always cold and be adding too much fuel at start up, and vise versa. Or it could be a bad check valve in the fuel pump allowing fuel to return back to the tank and the car has to rebuild fuel pressure to the rail every time. A bad fpr could cause that as well if its not blocking the fuel from returning. Possibly a fuel filter as well. First thing I would check is fuel pressure. Start the car up and let it build pressure, once its all the way up shut it off. If pressure drops suddenly then you are on your way to finding your problem.

01-11-2007, 05:52 PM	#4
Honduh Tri-State Post Whore Join Date: May 2006 Member #1977 iTrader: (0)	A single sprak plug soaked in oil will not cause the car to not start or an extended crank. If anything it will cause a missfire on that cylinder.