Correct Timing for 4.0 ?

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Oct 17, 2009 | 10:27 PM

Hylander

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Joined: Jul 2009

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Model: Wagoneer

Correct Timing for 4.0 ?

What is the correct timng for 97 4.0
Just installed a new engine and it does not want to fire.

Oct 17, 2009 | 10:41 PM

ET JEEP

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Joined: Sep 2009

Posts: 454

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From: East Texas

Year: 1997

Model: Grand Cherokee

Engine: 4.0

Timing information is not given as the computer controls and sets the timing. The PCM gets its information from the many sensors intalled. Recheck your wiring. Check to see if you are getting a spark. If yes, check for fuel issue.

Oct 17, 2009 | 11:18 PM

Hylander

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Model: Wagoneer

Quote:

Originally Posted by ET JEEP

So what you are saying, is my Distributor should not be adjustable, correct ?

Oct 17, 2009 | 11:29 PM

sv41878

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Joined: Jun 2009

Posts: 670

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From: Central Pennsylvania

Year: 1989

Model: Cherokee (XJ)

Engine: 4.7 H.O.

The distributor is not adjustable, as long as you set it right to start, the ECU adjusts the timing based on what the crank sensor tells it. If it won't fire, I would check there first.