1996 SSEI Trouble Code P1406 - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

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1996 SSEI Trouble Code P1406

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Old 04-12-2005, 07:19 PM
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Default 1996 SSEI Trouble Code P1406

Does anybody have an idea what this actually means? Anybody else have this pop up? Do I have to replace the entire EGR Valve or is there something else causing it?


(P1406 EGR Valve Pintle Position Circuit Fault)
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Old 04-12-2005, 07:52 PM
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You can try removing the EGR, replacing the EGR gasket, and Scrubing the underside of the EGR and the passages you can get to with a good solvent and a small brush of some sorts....My 95 had the same problem, then I did that, and haven't seen it come back since.....
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Old 04-12-2005, 08:01 PM
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There is no 'underside' to a linear EGR (Lakeville, his is different than ours ).

You can take it apart and clean it. That'* the best first step.
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Old 04-12-2005, 08:07 PM
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Originally Posted by willwren
There is no 'underside' to a linear EGR (Lakeville, his is different than ours ).

You can take it apart and clean it. That'* the best first step.
Hrmm....well I tried either way...I got part of it right?
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Old 04-12-2005, 09:46 PM
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I had the same trouble on my 97SE....P1406...was a problem with the puter....
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Old 04-12-2005, 11:08 PM
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Same problem on my 95 SSEi. Took and followed the general instructions in techinfo about cleaning. Pintle was free though...so I sprayed a little cleaner at it. New gasket...and whatever you do...take that connector off and on about 5 times.

Sometimes it'* just a bad connection.
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Old 04-13-2005, 07:53 PM
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Thanks, I'll try some of that.
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