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2000 Jeep Grand Cherokee | No Start

2K views 12 replies 2 participants last post by  SupramanTT 
#1 · (Edited)
My front drive shaft broke a month ago, I waited a month to repair it and now the car will not start from some sort of other issue. My assumption is it is relating to the weather and possibly water in the fuel. The take was 3/4 full when I stopped driving. The drive shaft is currently removed but should not have any connection to the car not starting. I have poured a bottle of heet into the fuel tank. The temperature is currently 35 degrees and it has been in the teens for the last month.

Previously, the car has always started very smoothly. The first time I attempted to started a week ago, it started immediately and then died within one second. It worked this way about 5x. Then it seemed to not fully catch and added a bottle of fuel additive, nothing, then I added the Heet. The youtube video below shows what the current condition is.



https://www.youtube.com/watch?v=3snn7BsJxwM&

There are no trouble codes.

Update: I installed the pressure testing kit. That was an awful project! Anyways, I got it in and found that the rail pressure with just the key on is about 20-30lbs and then when it tries to start it maxes out at 50lbs. What is everyone's thoughts? I emptied about 8 ounces of fuel from the system using the kit and poured it into a glass jar. I do not see any other contaminants in the fuel. It seems very pure, no water was noticed.

Anyone have any ideas as to what to check next? I went through the fuses also and could not find one that was bad. I switched 15 and 12(power windows). No luck.
https://www.youtube.com/watch?v=DEiYdOa8i4U

Any guidance would be greatly appreciated.
 
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#2 ·
Welcome to the garage.
I would use some starting fluid to see if it then starts ok or not. The fuel pressure should normally be around 49 psi, which seems to be ok on your car.
Did you check the fuses #6, #19 and #26 in the PDC under the hood?
 
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#3 ·
Welcome to the garage.
I would use some starting fluid to see if it then starts ok or not. The fuel pressure should normally be around 49 psi, which seems to be ok on your car.
Did you check the fuses #6, #19 and #26 in the PDC under the hood?
I picked up a bottle of starting fluid. No go. Pretty much no difference between with or without. So it does feel like it is electrical.

I also checked the 3 fuses that you recommended with an ohm meter and they all had good connectivity so I do not believe any of them are bad.


Any other suggestions or ideas?
 
#4 ·
I would check if the ASD relay is working. This relay supplies the power to the coils. When the engine is not started, the relay is only powered for a few seconds. You can swap the ASD relay with a same one in the PDC under the hood and see what happens. The problem could be with the PCM as well.
 
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#7 · (Edited)
FIXED!!!!!
I have been pulling my hair out because I have been stranded for 10 days. Well, my intuition told me a 2nd time to disconnect the battery and reset the computer. BINGO!
All this extra work because the computer decided to be stupid. I have no idea what was wrong but that was the solution :) Thank you for your kind responses.

Does anyone have any ideas as to why the fuel pressure is running so high? It is running at 63psi at idle.
https://www.youtube.com/watch?v=fV8gCrayOZQ
 
#10 ·
Yes, the fuel filter and pressure regulator are one part. The fuel lines are "quick" disconnects, but after many years on the jeep, with all the road debris, they will be hard to remove. Spray some lubricating oil like WD40 on the disconnects, a day before you want to change it, so that it can work its way into the disconnects and make the removal easier.
 
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#13 ·
All fixed!!! :) It is now idling at 51psi :) That is so much better. Also the big plumes of smoke and very strong smell of exhaust is gone from the garage when idling. I am really looking forward to seeing how much this is going to effect my fuel economy. I would normally get 11-12mpg. highway was decent at 18-19 usually. I love road trips so I am excited to see how the car runs now :)

Thanks for the ideas.
https://www.youtube.com/watch?v=R5cFxZRilkE
 
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