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ROLAND M. SPERANZA

ROLAND ... 4/12/2011

1990 Pontiac Tempest Base 6 Cyl 3.1L

Engine

my car start to misfire after i have ad some more motor oil that was required. What shall i do next? see aditional detai

I have changed the sparkplugs and the sparkplugs wires. I have changed the oil and the oil filter.
I have put feul injector cleaner to the gas tank and still it misfire. eventho i have put the f.e cleaner while the gas tank was on a empty position does it matters>?

2 Answers


Spoon Sports

Spoon Sports 4/12/2011

Before we go with my 2 cents worth, is your check engine light on?

Im quite certain your injectors are the ones making it misfire, now with your question as to an empty fuel tank, i believe it did have an effect because the bottom of the tank is dirty and some of the dirt probably got thru the injectors amidst the fact that you used an injector cleaner.

Honestly im not sure if my theory is right, that is just my 2 cents worth, anyway, if that happened to me, i will top my car off when i gas up, add another round of injector cleaner and see if it changes.

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Spoon Sports

ROLAND M. SPERANZA 4/13/2011

Thanks for your recomendations thats exactly what i am going to do.
One more thing , my car goes in the reverse when he wants to, and most of the time he does not wants to. I have changed the transmission oil and filter but still the same thing.
What do you suggest ?

Bill

Bill 4/12/2011

How much oil is engine burning? This could have some bearing on performance.

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Bill

ROLAND M. SPERANZA 4/13/2011

Thanks for your recomendation, but it does not burn the oil, i realy believe it has something to do with the fuel injectors.
But still i have one more thing , my car does not wants to go in reverse all the time , he does it when he wants to, and most of the time he does not want to.I have changed the transmission oil and filter but still the same thing. What do you suggest ?

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