1999 Cadillac Deville have a 99 cad de ville

Tiny
STEBBINS1
  • MEMBER
  • 1999 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 99,000 MILES
Have tried every thing. Had heads taken off and new bolts installed. New waterpump, raditor, alternator, starter
car started to burn 4 quarts of oil, every 300 miles, engine quits occasionaly, at stop sign. Then restarts ok. Have changed the following. All new. 2 front oxgen sensors, new valve, with rubber flap in intake manafold, cleaned the maf valve. New plugs wires,

it runs and starts great. Idles at right rpm. Had a code engine rich, then changed oxgen sensors.

we cant figure out what to do to get the oil consumption back to 1 qt. Every 3000 miles like it was before pulled heads. , Why it stalls and quits at stop signs, cold or hot.
and gas milage was 25 to 27 on highway, now 17 to 20

thank you \

Ron
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Thursday, August 27th, 2009 AT 1:19 PM

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Tiny
STEBBINS1
  • MEMBER
Try dynamite
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Thursday, August 27th, 2009 AT 6:22 PM

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