Skip the auto shop - Our mechanics make house calls

Q: Just changed timing belt, starts wont stay on in idle, give it gas and it shuts off, HELP PLEASE..!!

asked by on

tried to Changed all my belts got stuck at the Crank shaft pully, couldn't get it loose then tried to vise grip the wheel, didnt work kinda ripped the belt so i needed to change it for sure, may have popped a couple notches at that time, not sure but when i stopped and just tried putting the other new belts on & move forward till i had all the tools i needed, then the car wouldn't start at all just turning, not over & no starts. Then i got some tools to do the job, went back in redid it all, lined up all the marks then lined up all the marks on the belt put pullies back on now it starts and wont stay running.... :( Please HELP ME..!!

My car has 150000 miles.
My car has a manual transmission.

A: When you damaged the belt and turned on the...

When you damaged the belt and turned on the motor you most likely bent the valves. This is an interference motor, meaning that the pistons and the valves can occupy the same space, just not at the same time. If the timing is incorrect and the motor is even turned over, the pistons can hit the valves and bend them. The only way to tell is to have the timing belt alignment rechecked first to see if it is aligned, then have the engine compression tested. This will tell you which cylinder, if not all, have bent valves. If this is the case, you are going to need to have the cylinder heads removed and rebuilt including replacement of the valves. If you want this issue to be diagnosed first, you should contact a qualified professional, such as one from YourMechanic, who can quickly and accurately diagnose the cause of your no start.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Running lights and tail lights stay on when the engine is off and the key removed

Hello. It sounds like your time delay in the control module is not working. It may also be a short in the switch but that is not as likely. The retained power relay may be failing or the control module...

Q: How to increase power without adding turbo?

Hi there. There are many ways to increase power to your vehicle without adding a turbo or supercharger. You could change the exhaust manifold to a exhaust header and gain more power. You could change the intake to have air...

Q: I put a 30 fuse in my cruise control slot instead of an 15 and now the d4 light is flashing

Hello, and thank you for writing in. A higher rated fuse will allow a higher amount of voltage through the circuit. This can confuse and do damage to the other electronics in the system. Start by going and getting the...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...