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Unread 08-12-2013, 07:40 PM   #1
dcarter46
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starting problems

Hi my name is dustin I have a 90 xj sport im cerently running in ti problems with my jeep not starting I have replaced all most every thing from the fuel pump to the crank sender and it as great fuel pressure and spark but it seems like the injectors are not palsating I was wounded if the distributor would have something to do with this thank you

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Unread 08-12-2013, 08:20 PM   #2
79chiefs
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ill it start with starting fluid. That will tell you is you have a fuel issue.
What color is the spark?
You need bright BLUE and a quick SNAPPING spark.
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Unread 08-12-2013, 09:30 PM   #3
dcarter46
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It is a snapping spark and it will start with starting fluid
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Unread 08-13-2013, 06:46 AM   #4
79chiefs
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Then it is fuel issue. What is your pressure? When the key is on and when you try to start it. Have you checked fuses? Have you tried to jump the ballast resistor? It is a white ceramic block on the drivers fender. Take a small wire and connect the two wires together.
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Unread 08-14-2013, 07:36 PM   #5
dcarter46
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I ve jumped to white resiter and the fuel press is 40 when I turn on the key and drops to 15psi and I've checked all the relays and fuses
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Unread 08-14-2013, 07:41 PM   #6
79chiefs
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You have a bad regulator. Pull the vacuum line off it and try it, but it may not help. It needs to be replaced.
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Unread 08-15-2013, 05:53 AM   #7
cruiser54
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Quote:
Originally Posted by 79chiefs View Post
You have a bad regulator. Pull the vacuum line off it and try it, but it may not help. It needs to be replaced.
Or a bad fuel pump.

And just for clarification on the distributor, you can unplug the little harness on a REnix dizzy and it will still run.
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If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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Unread 08-15-2013, 07:41 PM   #8
79chiefs
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OP said new fuel pump, but it could have been bad out of the box. It happens more often than not.
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Unread 08-15-2013, 09:16 PM   #9
cruiser54
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Quote:
Originally Posted by 79chiefs View Post
OP said new fuel pump, but it could have been bad out of the box. It happens more often than not.
Airtex?
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Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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