replaced timing belt, engine wont start on 2001 dodge neon

135,000 MILES
Avatar
BUD KAETTERHENRY
  • MEMBER
  • 2 POSTS
didn't here any abnormal noise, do have spark at plugs, fuel OK
Mar 28, 2012 at 9:43 PM
Avatar
CARADIODOC
  • ✓Experienced Mechanic
  • 34,397 POSTS
Have you checked for diagnostic fault codes? When you have an engine problem, please list the engine size and whether it's a single or dual cam engine. Have you rechecked the belt timing?
Mar 28, 2012 at 9:56 PM
Avatar
BUD KAETTERHENRY
  • MEMBER
  • 2 POSTS
DID NOT CHECK CODES YET-- ENGINE IS 2 LITER HIGH OUT PUT 2001 IN DODGE NEON RT - DID RECHECK BELT TIMING
Mar 28, 2012 at 10:02 PM
Avatar
CARADIODOC
  • ✓Experienced Mechanic
  • 34,397 POSTS
If this is the single cam engine, check for a sheared off dowel pin between the camshaft and sprocket. That will let the sprocket turn a little which retards the cam timing just as if the timing belt was off one tooth. At one tooth off, (or the equivalent), the Check Engine light will turn on and the fault code will be "cam and crank sync". At two teeth off, the Engine Computer will shut the engine down to protect it. You will still have intermittent spark at some plugs. At three teeth off, the pistons will hit the valves and bend them.

If the original belt broke while the engine was running, the valves will be bent. You can verify that with a compression test or cylinder leakage test. The engine will sound unusual when you're cranking it too.
Mar 28, 2012 at 10:49 PM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle