Cadillac Owners Forum banner

1 - 6 of 6 Posts

·
Registered
Joined
·
18 Posts
Discussion Starter #1
Hi

Have a 93 STS getting a low rpm misfire 1000-2000rpm ......chugg chugg chugg hit the gas clears abit after 2000rpm then by 3000rpm she's flying.

Any ideas
 

·
Registered
94 ETC,97 STS
Joined
·
3,531 Posts
Katshot is right on.
How long since it's been tuned? Change all the plugs ,probably the wires too, and check the vacuum hoses for a leak,then see how it runs.
 

·
Registered
Joined
·
38 Posts
did you clean your engine resently? i've seen some northstars do this before, after they were steam cleaned. Pull out the spark plug boots and see if there is water around the spark plugs, if so use an air gun to blow it out. its worth a shot:burn::burn:
 

·
Banned
1993 Triple Black Allante
Joined
·
701 Posts
epanightmare is right about the water. Happened to me a few months back and the air worked like a charm.
 

·
Registered
1993 STS and 2004 DTS
Joined
·
564 Posts
I hate to ask this question; are you using any coolant?

If so, and you do not see any leaks on the ground, you may have a headgasket leak.
 
1 - 6 of 6 Posts
Top