Q: After doing a head gasket on a 2002 3.9 Dakota, how long will it take after starting it will it take to start to run normally?

asked by on March 19, 2018

So I have just finished replacing the head gasket on my Dakota. How long after starting it up after completion, should it take to idle back out? If there is something still wrong where should I start to try and troubleshoot the problem. Tuaml you for your time this for the help

My car has 176000 miles.
My car has an automatic transmission.

Engine idle speed is high Inspection $94.99 - $114.99 Get a Quote

Unless your repair involved replacement or modification of engine controls, such as the IAC valve or throttle position sensor, the instant you start the truck after replacing just a, or both, head gaskets, the engine should operate normally. If the idle speed is erratic, too high or too low, or engine operation is rough, you can request an engine diagnostic and the responding certified mechanic will diagnose the issue you are facing and resolve it. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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