Chevy 3500 350 gas
I busted the top water pump hose fixed it but
flooded top of motor didn't run hot now it will not
shift right and is idled high put all new vacuum
lines new egr and still idled high and not shifting
Possibly need to open up all electrical connection one at a time and spray with contact (electrical board) cleaner and apply dielectric grease before reconnecting. Go back and make sure there is not any vacuum leaks, including intake gasket.
The coolant temp sensor could have gone bad. Iv seen plenty of times on these trucks that sensor go bad and make truck not run right. Also the throttle position sensor going bad will do this as well.
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