Skip the auto shop - Our mechanics make house calls

Q: Car won't start after doing valve cover job.

asked by on

Once the valve cover gaskets were replaced with new ones and the covers put back on, I put the intake back on without using new gaskets and the car wouldn't start but I did get a pop and a backfire and the intake has become quite warm. I have bought new intake gaskets but have not installed them yet. Can u help

My car has 152000 miles.
My car has an automatic transmission.

A: Hi there. From the description you have pro...

Hi there. From the description you have provided, something was reassembled incorrectly. Not replacing the upper intake (plenum) gaskets should not have caused the vehicle’s no start condition. Once that you have the plenum removed, carefully inspect all the components you disconnected to do the valve cover gaskets. Hopefully you locate the problem. You may want someone else to inspect it, while it’s apart. If you locate the problem, put it all back together with new gaskets and happy motoring. If you did not locate the problem and your vehicle does not start, I recommend having your vehicle inspected by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I jus recently gotten a new battery inserted in my car now my car is not starting without it cutting off.

This is your anti-theft system taking over as a result of the new battery being installed. This is unfortunately something that usually requires the dealer to reset due to safety precautions. Often times you will need to establish some kind...

Q: Starting issues - 1989 Chevrolet C1500

Hello. It would be important to know if the starter is clicking, if it is trying to turn, and whether turning the key results in it clicking more than once. There are many many issues your car could be having...

Q: I had my oil pan gasket replaced and car is still leaking oil

Hello, thank you for writing in. An oil leak like this can be tricky. First know that the oil pan, by design, is the lowest component in the oil system, so that gravity will collect the oil in the pan...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...