Help debugging a crank but no-start issue

[Andy Maurer]

My 98 TJ will crank over fine but won't start. I know I read a thread posted by Chris a while back listing out the things to check for debugging and I have searched for it with no luck. Can someone direct me to this thread? My plan is to test for spark, fuel then compression and really hope it is one of the first two!

 

[CharlesHS]

My 98 TJ will crank over fine but won't start. I know I read a thread posted by Chris a while back listing out the things to check for debugging and I have searched for it with no luck. Can someone direct me to this thread? My plan is to test for spark, fuel then compression and really hope it is one of the first two!

TJ Resources section.

https://wranglertjforum.com/forums/tj-resources.121/

 

[Chris]

This thread?

Jeep Wrangler TJ won't start? Read this!

 

[Andy Maurer]

This thread?

Jeep Wrangler TJ won't start? Read this!

That’s it, thanks!

 

[Chris]

That’s it, thanks!

You’re welcome!

 

[Andy Maurer]

Follow up question, when testing spark and/or compression do I need to cut off the fuel system? And if so, how would I go about this? This is for an engine that turns over fine, but does not start.

 

[scottgraham]

Can you hear your fuel pump prime when you turn the key to "run"?

 

[Andy Maurer]

Can you hear your fuel pump prime when you turn the key to "run"?

Yep, I hear it click on for 3-4 seconds when turning the key to run. I have made a habit of leaving it the run position for a couple seconds before starting it.