1994 Cadillac Deville need help

Tiny
TYRHEIN
  • MEMBER
  • 1994 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 14,500 MILES
My car just started to cut off and puttering and I was wondering what it was?
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Sunday, June 14th, 2009 AT 2:50 PM

3 Replies

Tiny
RASMATAZ
  • MEMBER
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
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Sunday, June 14th, 2009 AT 5:13 PM
Tiny
TYRHEIN
  • MEMBER
Thanks alot. When putting injection cleaner in how much gas should I have in my car? Low or half or full? Thanks alot for replying
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Monday, June 15th, 2009 AT 2:08 PM
Tiny
RASMATAZ
  • MEMBER
Read the injector cleaner instructions, for me I put in 1 bottle to a full tank
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Monday, June 15th, 2009 AT 2:50 PM

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