Q: Car doesn't start after head gasket replacement

asked by on

After we replaced the head gasket on my car, I couldn't start it up anymore. We made sure that all the parts were put back in the right place. We put the battery and tried to turn the engine on, but it wouldn't start. What should I do? Thanks.

Hi there. If the engine will not crank then the starter circuit needs to be tested to see if there is a wiring issue. If it is cranking and not starting then the computer needs to be checked with a scan tool to see if it is getting a crank signal from the crank sensor. If not then it may be a sensor or circuit problem. If all of the sensors check out the security system may be causing this. If the security light is on when you try to crank the engine then it is the issue. This can be a programming issue or a problem with the passlock sensor. A computer scan tool would be needed to test those. If you need to have this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car doesn't start after head gasket replacement

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: Car is leaking coolant, and overheating, is it the intake manifold gasket?

This may be related to a few different things such as a bad thermostat, a failing coolant fan relay, or a blown head gasket. As you may know the thermostat regulates the flow of coolant in and out of the...

Q: How much does it cost for Camshaft cover and Valve cover gaskets, parts and labor?

Billing question sent to CS for the cost of replacing the valve cover and camshaft cover gaskets with the cost of labor on a 2008 Mercedes-Benz CLK350 with a V6-3.5L engine.

Q: The trunk lid wont stay up by its self have to hold it up with my hand. Its a Oldsmobile alero 2004

You will need to replace both of the trunk lid support shocks. They will lose their gas charge over time and will no longer support the lid weight.

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...