Rough idle after head gakest replacement
#1
12-04-2018
Join Date: Oct 2018
Location: San Antonio
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#2
12-04-2018
A lot of territory on that one, lol.
Warm up the engine and then let it idle
Unplug the 2 wire connector on the IAC Valve, it should then close and RPMs should drop, or engine may even stall, either is GOOD, it means no vacuum leaks
If RPMs stay up then there is a leak somewhere, start checking hoses, maybe something got missed.
I assume the engine runs fine and has normal power when driving?
PCV valve is a pain to get at on this engine, did you change it when doing this work?
Warm up the engine and then let it idle
Unplug the 2 wire connector on the IAC Valve, it should then close and RPMs should drop, or engine may even stall, either is GOOD, it means no vacuum leaks
If RPMs stay up then there is a leak somewhere, start checking hoses, maybe something got missed.
I assume the engine runs fine and has normal power when driving?
PCV valve is a pain to get at on this engine, did you change it when doing this work?
#3
12-04-2018
Join Date: Oct 2018
Location: San Antonio
Posts: 48
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Head gasket replacement
A lot of territory on that one, lol.
Warm up the engine and then let it idle
Unplug the 2 wire connector on the IAC Valve, it should then close and RPMs should drop, or engine may even stall, either is GOOD, it means no vacuum leaks
If RPMs stay up then there is a leak somewhere, start checking hoses, maybe something got missed.
I assume the engine runs fine and has normal power when driving?
PCV valve is a pain to get at on this engine, did you change it when doing this work?
Warm up the engine and then let it idle
Unplug the 2 wire connector on the IAC Valve, it should then close and RPMs should drop, or engine may even stall, either is GOOD, it means no vacuum leaks
If RPMs stay up then there is a leak somewhere, start checking hoses, maybe something got missed.
I assume the engine runs fine and has normal power when driving?
PCV valve is a pain to get at on this engine, did you change it when doing this work?
i just did it and the vehicle turned off, what’s the issue?
Last edited by Kharon; 12-04-2018 at 02:41 PM. Reason: adding
#4
12-04-2018
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