SPONSORED LINKS

2000 Chevy Impala

Tiny
MRSJXN
  • MEMBER
  • 2000 CHEVROLET IMPALA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 191,000 MILES
I recently ran my car hot so I had to repair the heads, head gaskets, values, ect. Lots of work done to it. After the repairs my car is putting ( or kind of like a putt ) and runs rough while idoling or almost stopped. Its not knocking but kind of like a roaring putting sound. My car did not do this before. My mechanic can not figure out why.
SPONSORED LINKS
Wednesday, November 3rd, 2010 AT 12:29 PM

3 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Coolant may have damaged CAT check exhaust back pressure
Was this
answer
helpful?
Yes
No
Wednesday, November 3rd, 2010 AT 12:50 PM
Tiny
MRSJXN
  • MEMBER
  • 2 POSTS
Thanks for the quick reply, Docfixit Your reply was the CAT may be damaged from coolent check the back exhaust. What does CAT mean? And I stuck my hand by the back muffler to feel exhaust and you can feel it putting out. Its not blowing out a solid stream of exhaust. The exhust is putting out in sync with the putting sound my car is making. Does this sound like the problem you spoke of?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, November 3rd, 2010 AT 1:08 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
CAT is catalytic converter pressure gague can be placed into O2 sensor port. Or put a vacuum gague on intake port should be 17-29Hg. In. At idle raise RPM to 2000 if CAT clogged gague will drop towards 0
Was this
answer
helpful?
Yes
No
Wednesday, November 3rd, 2010 AT 4:32 PM

Please login or register to post a reply.

Related Cylinder Head Gasket Content

Can You Fix a Head Gasket with a Sealer?
VIDEO
Can You Fix a Head Gasket with a Sealer?
Instructional repair video
Cylinder Head Gasket Blown Symptoms
GUIDE
Cylinder Head Gasket Blown Symptoms
A head gasket failure must be caught early to help protect the engine from additional damage. Understanding and recognizing these symptoms will be beneficial to your ...
VIEW MORE

Sponsored links