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Found 4 results

  1. Hello, I have a 1997 Deville, 84k miles, beautiful car. It ran great on the test drive, but after getting it home, and sitting overnight, it didn't want to start the next morning. After cranking for awhile, it eventually, and reluctantly started, and ran great after warmup. I did notice that the exhaust seemed VERY rich. I have since replaced the plugs, wires, added seafoam to the gas tank twice, and it has more power, and runs GREAT after starting, however it still doesn't want to start right away after sitting overnight, but will restart just fine once it's been running, or after the initi
  2. My 1996 Deville has the engine light on and will not pass emissions. My dad's car, he thinks its a bad ground? The repair shop wants to replace the PCM at a cost of $502 pluss around $300 for installation and programming. I found one on Ebay for $89.95 programmed. Anyone familiar with this issue? Please help.. Phil
  3. I did a search about this problem and it looked like it would one of two problems. It could be either a defective Evap. purge solenoid or a break in the wiring. One of the members found the wire broken internally just behind the connector by the valve. One of my first tests involved opening up the lock part of the PURGE solenoid connector and pulling/tugging on the wires to check if the wire was broken inside the insulation. After that I back probed with my fluke to check for continuity. The terminals are like new- clean and shiny. The wire felt good so I ordered a OEM valve from Rockauto and
  4. When going down the road at operating temperatures, while giving just a small amount of gas the engine seems to stumble or missfire, and sometimes even will completely stall after you take your foot off the pedal. When I unplug the EGR valve it works fine, but when I plug it back in the troubles come back. Already tried replacing the EGR valve but it had no effect. Any suggestions? (Besides just leaving it unplugged) 94 Caddy Eldorado Touring, Northstar 4.6L
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