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Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Jeep
Satisfied Customers: 47997
Experience:  16 years of experience
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Jeep Grand Cherokee: 2004 Jeep Grand Cherokee won't start when

Customer Question

2004 Jeep Grand Cherokee won't start when it's hot outside
Submitted: 2 years ago.
Category: Jeep
Expert:  Chris (aka-Moose) replied 2 years ago.
Hello, I'm Chris. Thanks for seeking us for help.
I am sorry for the delay in getting a response to you. Sometimes we get alot of customers and just can not keep up. Sometimes you just have to wait for the correct tech to login.
Do you even still need help. Sometimes customers seek help elsewhere or figure it out on their own before we get to each and everyone.
I am sure I can help a lot or a little at least something if you give me a chance and work with me. I am going to get an answer to you regardless if you reply or not sooner or later.
If your concern is urgent reply and let me know and if you have anything more you think will help me, to help you, let me know. I work on here normally 3pm-3am central.
Thanks Chris
Customer: replied 2 years ago.
It's still not solved. The only time this vehicle has problems is when the outside air temp is hot. It may be something inside. I used water to try and cool off the engine compartment and the undercarriage yesterday and it did not help. I got home after 8pm and it had cooled off outside so it started right up.
Expert:  Chris (aka-Moose) replied 2 years ago.
When there is not an issue, start the engine and verify there is ignition spark occurring seen visibly, injector pulse tested with a noid light, and fuel pressure. Now you know what you should see. Now duplicate the issue and recheck those same things while cranking. Most likely your going to find no fuel pressure from a hot pump that can not spin up to speed. That is the most common issue with your symptoms.
You want a excellent 5 star answer & I would like to be rated the same for providing it. Consider I don't know your skill level & I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies. Try your best to respond with good detail so I can do the same. I normally log in at 3pm and work late. A rating is required. Your rating me, what I type. I am not an employee of this website, nor have control over the fees or the time it took to get a response. If you rate negative or not at all you still paid, but I get nothing. I want you pleased with me and my efforts, so let me know if your experience here has come up short.
Thanks Chris
Customer: replied 2 years ago.
Chris - I am waiting on a part to come in and we'll see what happens. Thanks for the feedback.
Expert:  Chris (aka-Moose) replied 2 years ago.
Customer: replied 2 years ago.
Chris - see the attached pictures. I replaced the BCM and it did not fix the issue. The cable with the white plug seems to be the key. If I pull down on it I can hear something engage or turn on underneath the vehicle and then it will start. When I don't pull down on it none of the gauges are "on" but as soon as I do they turn on. Images attached - 1 showing the white plug/cable and 1 showing what the gauges look like when I turn the key to the on position and it does not start.
Expert:  Chris (aka-Moose) replied 2 years ago.
Are pins making poor connection in the fuse box or connector. Are the wires broken inside of the insulation not visible, but felt as weak wires.

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