Hydro carbon

Tiny
ATPIRTLE
  • MEMBER
  • 1995 CADILLAC DEVILLE
  • 160,000 MILES
I am having problems getting my car through because my hydro-carbon levels are very high. So I was wandering what could the problem be
Thursday, August 25th, 2011 AT 11:17 PM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
High hydrocarbons are most often caused by unburned fuel. Do you have a check engine light on indicating a fault. The problem could be a catalyst that is not working properly, excessive fuel saturated oil(crankcase vapor), faulty oxygen sensor(s). Before you go throwing any parts at it, the basic maintenance needs to be assessed. Then having the problem diagnosed hands on, would be a suggestion.
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Friday, August 26th, 2011 AT 1:38 AM

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