Need help, engine won't start

[chemE1228]

Had the 4.0l in my 1999 jeep xj sport rebuilt, installed it and now I can't get it started. It will roll over and I smell gas when rolling over, but it doesn't fire. I have replaced almost every sensor on the engine, the fuel injectors, and replaced the fuel pump. I set the timing, it has spark, but still nothing. I'm not sure where to go from here, anyone have any ideas?

 

[blakews2217]

Compression? I watched a guy rebuild his motor and it have no compression when he was done. Granted it was his first


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[Frank Z]

Start with the basics.
Make sure the distributor is properly indexed.
Triple check your plug wires for the correct firing order.
Check for a spark at the coil wire.
All chassis and engine grounds clean?

 

[blakews2217]

Also, CEL on? If it is then it's a good starting point.


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[Tim_MN]

As suggested already, go over your work and confirm there are no issues.

The PCM will re-boot and delete the idle settings if the battery is disconnected for a long period of time. You will have difficulty starting and will have to feather the gas pedal to get it to start, and then nurse it to stay running until the PCM re-learns the idle settings.

 

[chemE1228]

i have spark but will check timing and grounds. There is no check engine light and even hooked up reader to ecm and shows no faults. Thanks ill check a few things

 

[Cummins90]

As suggested already, go over your work and confirm there are no issues.

The PCM will re-boot and delete the idle settings if the battery is disconnected for a long period of time. You will have difficulty starting and will have to feather the gas pedal to get it to start, and then nurse it to stay running until the PCM re-learns the idle settings.

X2. I thought my IAC had failed during a head gasket repair.

 

[chemE1228]

I redid the timing and it started! thanks for the advice. now to buy a transmission

 

[Frank Z]

I've got one for sale in the Colorado Chapter....

 

[Hypoid]

Yup, COLORADO BABY!!!!!!!!!!

http://naxja.org/forum/forumdisplay.php?f=95

It might help if you list your nearest municipality in Colorado.