jmjkorosco
Registered Member
just finished my first engine swap on my 88 k5 .one problem the motor idles a little high. any ideas what could be causing that ? tbi with a stock 350
CK5
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finally done!
- Thread starter jmjkorosco
- Start date
rampage
3/4 ton status
Spray some carb cleaner around the intake gasket to see if the RPMs increase. If so then your gasket isn't sealing correctly.
y5mgisi
1 ton status
Ususally a vacuum leak. Did you double check all the vacuum lines?
I had a throttle body that the shaft and bushings were so worn out the throttle didn't close all the way. You would have to grab it and give it a wiggle and twist and it would close properly and idle would drop to normal. Check for that.
IAC could be malfunctioning also.
IAC could be malfunctioning also.
jmjkorosco
Registered Member
it was the iac valve
