spark plug problems
Thread Starter
Advanced
Joined: Jun 2009
Posts: 64
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From: lore city ohio
spark plug problems
Hey anybody, I repaced the plugs in my 95 LT1 with 118,000 miles on it with the ngk55ix plugs that alot of you seem to like. Now the car runs terrible, ran better before, now it popping and backfiring especially in first second and third gears, seems to run better once you get past 45 mph.. Is it because I messed with the appears to be original plug wires? Need some advice , please. Brent 317
Drifting
Joined: May 2007
Posts: 1,440
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From: SW Chicago Burbs IL
You'll have better luck in the c4 technical section.
Did you gap the spark plugs properly?
Make sure all the spark plug wires are pushed on and fully seated.
Since your spark plug wires are original, I would check them for cracks in the insulation and condition. Either at night or in a dark garage, fire up the car and look under the hood to see if there are any arcs from the wires.
Matthew
Did you gap the spark plugs properly?
Make sure all the spark plug wires are pushed on and fully seated.
Since your spark plug wires are original, I would check them for cracks in the insulation and condition. Either at night or in a dark garage, fire up the car and look under the hood to see if there are any arcs from the wires.
Matthew
Melting Slicks
Joined: May 2002
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From: right here right now
CI 5-6-8-9-11 Veteran
Don't blame the plugs... check your work.
plug gaps, old wires, caps pushed all the way down making sure the metal part snaps on the plugs, wires hooked up in the proper order... etc.
Ahhhh I see the problem your a noob.....
plug gaps, old wires, caps pushed all the way down making sure the metal part snaps on the plugs, wires hooked up in the proper order... etc.
Ahhhh I see the problem your a noob.....
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