2000 Volvo S40 shaking and black exhaust

Tiny
ALISAB429
  • MEMBER
  • 2000 VOLVO S40
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 115,000 MILES
Prior to this morning my car was fine. I started it up & drove to work, my gas light was on but didn't stop at that time. When I was leaving on lunch after starting my car the check engine light came on, it felt like it was going to run out of gas but after giving it some gas and some sputtering it seemed to run fine. I noticed dark exhaust coming out of the pipe. I went to the gas station, put a bottle of gas treatment and 6 gallons of gas in. I made several other stops and each time I restarted my car it would sputter, if I slowed to a stop it would feel like it was going to stall. I continued to see the dark smoke coming out of the exhaust pipe. Check engine light has stayed on. Help? Not too many people around here work on Volvos and I don't want to have to pay the dealership if I don't have to.
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Friday, March 14th, 2008 AT 3:06 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Two things 1.) Black exhaust means you are running too rich, or too much gas! Thie reason could be the engine coolant temp sensor, or the fuel pressure rerulator, or a plugged fuel return line, go to autozone, have the codes read, they do it free, then post the results here, write down the codes, or get the printout.
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Friday, March 14th, 2008 AT 3:12 PM

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