Cadillac needs mass air sensor, how to put it on?

Tiny
LINZIE
  • MEMBER
  • 2000 CADILLAC DEVILLE DTS
  • V8
  • 4WD
  • AUTOMATIC
  • 136,286 MILES
Car won't accelerate like it use to. It starts******** when you try to give it gas. You have to slowly let it build up to speed. It's really ruff on hills.I was told I could do a mass air flow sensor myself but I don't know where to begin. Also I believe I might need a catalytic convertor. Help me!
Tuesday, February 15th, 2011 AT 1:21 AM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
I would not try a MAF sensor just yet. It sounds like you have a misfire under load. I would suggest removing and inspecting the spark plugs for carbon tracking, indicating misfire. A scan tool that reads data can direct you to a specific cylinder that is misfiring, as more of a pinpoint approach. A catalytic converter that is restricting flow can cause misfires, across all cylinders. Your biggest issue on that would be a severe loss of power and not necessarily a rough run.
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Thursday, February 17th, 2011 AT 3:58 AM

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