# 2001 Trooper Engine Trouble

**URL:** <https://community.cartalk.com/t/2001-trooper-engine-trouble/74683>\
**Category:** Maintenance/Repairs\
**Tags:** isuzu, trooper\
**Created:** [September 25, 2012, 11:53pm UTC](https://community.cartalk.com/t/2001-trooper-engine-trouble/74683 "2012-09-25T23:53:41Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![soundhound](https://avatars.discourse-cdn.com/v4/letter/s/e9a140/32.png) [@soundhound](https://community.cartalk.com/u/soundhound)\
**Post date:** [September 25, 2012, 11:53pm UTC](https://community.cartalk.com/t/2001-trooper-engine-trouble/74683/1 "2012-09-25T23:53:41Z")

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Rebuilt engine, installed, started right up but had loud tic and started leaking oil. Pulled engine, fixed leak, inspected heads, re-installed,turns over but doesn’t run. Weird thing is, first time I try to start it each evening it runs for about a second and then dies and then won’t try to run again till the next day. This has happened 5 days in a row. I sprayed starter fluid in intake, no luck. I borrowed scan tool, no codes set just won’t start.  
Any ideas?

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**Author:** ![speedrover](https://avatars.discourse-cdn.com/v4/letter/s/2acd7d/32.png) [@speedrover](https://community.cartalk.com/u/speedrover)\
**Post date:** [September 26, 2012, 11:20pm UTC](https://community.cartalk.com/t/2001-trooper-engine-trouble/74683/2 "2012-09-26T23:20:44Z")

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Loud tick=Low oil, improper building of engine…anything.  
Perhaps the computer needs reset or is shot…or the O2 sensors are shot.  
Is there a chance you crossed some wires upon install? That’ll cook any onboard electronics

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**Author:** ![researcher](https://avatars.discourse-cdn.com/v4/letter/r/edb3f5/32.png) [@researcher](https://community.cartalk.com/u/researcher)\
**Post date:** [September 27, 2012, 2:41am UTC](https://community.cartalk.com/t/2001-trooper-engine-trouble/74683/3 "2012-09-27T02:41:34Z")

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When the engine does not run is there spark at each of the spark plugs? Is the spark timing somewhere close to correct? What is the compression?

I know this is a rebuilt engine but you have to go back to basics when an engine will not start i.e. fuel, compression, ignition, and event timing(s).

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [September 27, 2012, 4:37am UTC](https://community.cartalk.com/t/2001-trooper-engine-trouble/74683/4 "2012-09-27T04:37:09Z")

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My first guess would be some kind of timing problem. The valves and/or the spark may not be properly in sync with the compression cycle. Double check all the timing marks again.