Q: Changed heads and now it won't start. Dodge dealer said no compression

asked by on November 03, 2016

Was running fine before I dropped a couple valve seats from over heat. Changed heads. Won't start

My car has 80 miles.
My car has an automatic transmission.

Car is not starting Inspection $79.99 - $89.99 Get a Quote

Hi there. For the valve seats to drop out of the cylinder head(s), the engine overheat must of been severe. Assuming you followed proper procedure replacing the cylinder heads. This would lead me to believe it to be the compression rings on the pistons. Check the previous work for the cylinder heads to make sure they were done correctly. You may want to get a second opinion on the car to verify the problem. A certified technician from YourMechanic can come to your car’s location to diagnose the no start and follow through with repairs.

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

What others are asking

Power windows not working.

It is possible that you have a blown the fuse for the power windows. If it is possible for you to easily replace this fuse, it will be shown in the owner's manual of your vehicle. If you are uncomfortable...

Turn signal is out

Hi there. Bulbs going out is pretty common, however, other SRX owners have reported many issues with the bulbs burning out prematurely and having to replace them multiple times in a year. To replace the bulb, either the tire or...

engine ticking, constant light white smoke out one side of exhaust

Hi there. I highly doubt that the change to synthetic oil is causing the white smoke. In most cases, this is due to valve guides that are worn down or piston rings that are faulty. It's also common when coolant...

Tries to run but won't get over 400 rpm before dying.

Hi there. Check for the three essentials that the engine needs to run, fuel, spark, and air. If you are having fuel and the pressure is 30 psi or higher, then check for spark on the spark plugs and wires....

Anti-theft preventing car from starting

Hello. The first thing I would do is try to reset or disable the anti-theft system. This can be done by locking the doors with the power lock, and closing all the doors and the trunk. Then you wait 30...

Replaced the power steering pump and now car won't start.

Hello there, you have a few different faults going on with your 2009 Chevrolet Impala. The power steering repair should not effect the vehicle starting in any way. There are many common causes for the vehicle to not start such...

2004 Chevy impala ss sunroof will not close, make clicking noise and motor sounds like it is laboring

Hi There, It sounds like the sunroof is binding up inside the track causing it to get stuck and ultimately overpower the motor. This will likely require the sunroof panels to come apart to determine what may be causing it...

My oil light keep combing on

The oil pressure light on indicates a drop in oil pressure. A cold engine with cold oil will generally have higher oil pressure because the cold oil is thicker. Once the oil warms up, it can get thinner and cause...

There is whirring noise and vibration coming from the front end of my car

Hello. It sounds like you have a bad front hub bearing. When the bearing fails, this will occur as the noise you are hearing is the bearings not having any grease on them. I typically start by getting the vehicle...

Related articles

Symptoms of a Bad or Failing Coolant Tube
Common signs include low coolant levels, visible coolant leaks, and engine overheating.
A Buyer’s Guide to the 2013 Dodge Dart
It’s It’s back, and better than ever. In the first incarnation of the iconic Dodge since 1976, the Dart has been updated, beatified, and turned into a compact force to be reckoned with. This zippy little machine is tough to...
The Best Used Cars to Buy If You're an Undercover Cop
If If you're an undercover cop, when you choose a used vehicle, your main purpose is to look like anything but a cop. That means, of course, that an unmarked Crown Victoria is probably not the wisest choice. We’ve...