Code 55?? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-25-2003, 08:52 PM   #1
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Default Code 55??

I did that short-out method to read the codes on my car. It flashed 55, which is ECM. The only quirks I've noticed is the tranny-slipping-feel I described in 1992-1999, and the fact that it runs a little hooter than it should. I just changed my T-stat from a 160 to a 180. What'* the deal??
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Old 09-25-2003, 08:52 PM   #2
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Hotter!! Hotter!! Not hooter!! Freudian slip there...
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Old 09-25-2003, 08:55 PM   #3
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55 ain't normally a good thing. But your car seems fine. Disconnect your battery for a good 30 minutes to reset your codes, since you don't have a scantool to do it with.

After that, DON'T start the car. Turn the ignition back on and check again. It may be a history code from an earlier time.....but I'm not sure if history codes show up using the flash feature.
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Old 09-25-2003, 09:40 PM   #4
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You're looking at the wrong code list.

See your other thread.
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Old 09-25-2003, 09:57 PM   #5
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I've had that one before. Had to clean and lube the EGR cylinder shafts. No problems since. And DON'T use WD-40 to lube. Clean with it, but that crap is a SOLVENT, not a lube, and will just evaporate under heat.

Use a teflon based lube for the shafts after cleaning.
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Old 09-26-2003, 09:00 AM   #6
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Quote:
Originally Posted by willwren
I've had that one before. Had to clean and lube the EGR cylinder shafts. No problems since. And DON'T use WD-40 to lube. Clean with it, but that crap is a SOLVENT, not a lube, and will just evaporate under heat.

Use a teflon based lube for the shafts after cleaning.
Okay, thanks...I guess the only question now is, where in heck is the EGR Solenoid #3???
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Old 09-26-2003, 10:48 AM   #7
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Okay, I reset the computer, no codes now. Thanks.
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