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1994 Cadillac Concours losing power

Tiny
ROUNTREE3
  • MEMBER
  • 1994 CADILLAC DEVILLE CONCOURS
  • V8
  • FWD
  • AUTOMATIC
  • 95,000 MILES
From about First to Third Gear, the engine sputters and jerks losing power. The car seems to perform better at higher speeds but does still occasionally jerk as though it is not getting fuel.
Friday, January 1st, 2010 AT 10:22 PM

2 Replies

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
Sounds like you might have secondary misfiring under load. Possibilities include spark plugs, plug wires, a corroded coil terminal.
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Saturday, January 2nd, 2010 AT 8:56 PM
Tiny
ROUNTREE3
  • MEMBER
  • 2 POSTS
We have already checked and cleaned all the spark plugs and made sure they were gauged correctly. At the time, one was loose and we thought that may have been the cause of the problem but the problem persisted. The car was also parked for 2 months. One thought is the gas went bad and we are now in need of a fuel filter but we are not sure. Willl a fuel filter cause the same type of problems?
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Sunday, January 3rd, 2010 AT 9:44 AM

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