Temp related rough running
Thread Starter
Racer
Joined: Apr 2003
Posts: 371
Likes: 0
From: Kingsport TN
Temp related rough running
Not sure whats going on. Any idaes? Runs fine till temp hits 197 degrees then idles fine but under load shutters, feels like it's not running on all cyl. Back off the throttle and it's ok hit it with a load or WOT and runs like crap.........? Thanks. As you see I ended up not having to sell the beast......yeeeeeeeeeeeeeeesssssssssssss ssssss.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
I would suspect fuel, ignition or clogged cat.
Does it misbehave when you rev it in park? If so clip a timing light onto the wires to see if missed flashes match with engine misses. Also check fuel pressure.
To check for a clogged cat, either open the exhaust system in front of the cat or install a pressure gauge. More than a few lbs of back pressure would indicate a problem.
Does it misbehave when you rev it in park? If so clip a timing light onto the wires to see if missed flashes match with engine misses. Also check fuel pressure.
To check for a clogged cat, either open the exhaust system in front of the cat or install a pressure gauge. More than a few lbs of back pressure would indicate a problem.
