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Will not start

Tiny
WILLIE1955
  • MEMBER
  • 1999 JEEP GRAND CHEROKEE LAREDO
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
The vehicle first started not starting all the time. It has a new fuel pump, crank sensor, cam sensor, starter and spark plugs. Now, it is getting sparks but will not fire. Any advice would be appreciated. Thanks.
Saturday, March 11th, 2017 AT 5:52 PM

8 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Then scan for codes see if anything comes up and check fuel pressure. is spark good like blue and not a weak spark? check fuses under hood and ASD relay. then try stuff on link here.
https://www.2carpros.com/articles/engine-cranks-excessively-before-starting
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Sunday, March 12th, 2017 AT 10:42 AM
Tiny
WILLIE1955
  • MEMBER
  • 4 POSTS
We are stumped. It is getting fuel. It will not start even with ether.
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Sunday, March 12th, 2017 AT 11:20 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like it might have jumper time, can you do a compression test to see if the engine has any?

https://www.2carpros.com/articles/how-to-test-engine-compression

Please run this test and get back to us so we can continue helping you.

Best, Ken

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Monday, March 13th, 2017 AT 2:52 PM
Tiny
WILLIE1955
  • MEMBER
  • 4 POSTS
I'll relay your message to my husband. Thank you for responding.
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Monday, March 13th, 2017 AT 7:33 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Please let us know what you find so it will help others.

Best, Ken
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Tuesday, March 14th, 2017 AT 11:41 AM
Tiny
WILLIE1955
  • MEMBER
  • 4 POSTS
Just wanted to let you know, my husband will be trying what you suggested about the timing chain. He has a friend who is a mechanic who is helping him this week. We will let you know what happens. We really appreciate your help.
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Monday, March 20th, 2017 AT 6:47 PM
Tiny
WILLIE1955
  • MEMBER
  • 4 POSTS
There is no compression. You were right! They are going to fix it next week. I don't think they are looking forward to it.
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Wednesday, March 22nd, 2017 AT 3:28 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Good to hear, please use 2CarPros anytime we are here to help.

Best, Ken
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Wednesday, March 22nd, 2017 AT 6:48 PM

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