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Old 02-02-2008, 08:52 PM
 
Join Date: Feb 2008
Posts: 17
Default 96 DeVille Rough Idle

96 DeVille Northstar

Rough Idle, more present at low rpms or just sitting in gear motionless.

No codes present. 138,000 miles

Code a coil pack be weak? Who can I check each coil to see if one is weak and not totally out.
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  #2  
Old 02-03-2008, 07:13 PM
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Default RE: 96 DeVille Rough Idle

Quote:
ORIGINAL: DocHemi

96 DeVille Northstar

Rough Idle, more present at low rpms or just sitting in gear motionless.

No codes present. 138,000 miles

Code a coil pack be weak? Who can I check each coil to see if one is weak and not totally out.
need more details ...
- have you checked the Throttle intake for carbon ?
- tested the TPS?

w/o test equip, you could buy one coil and start swaping it.


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Old 02-03-2008, 10:09 PM
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Default RE: 96 DeVille Rough Idle

have you done a tuneup recently, how about the fuel filter.
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Old 02-03-2008, 10:09 PM
 
 
 
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03, 96, cad, cadillac, coil, deville, eldorado, gear, idle, missing, northstar, rough, speed, supposed, testing, tps


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