Truck will not start without starting fluid

2008 ISUZU NPR

120,000 MILES • 5.2L • 4 CYL • TURBO • 2WD • AUTOMATIC

BHUNTLEY

MEMBER
1 POST
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Truck will not start without starting fluid. I put a new fuel pressure limiter and a fuel pressure regulator on it. I also put a new pigtail on the fuel regulator but it still will not crank without starting fluid. Gas feed will not work at all when cranked.
Please help!

Nov 4, 2018 at 3:59 PM

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JONNYB1963

CAR REPAIR CONTRIBUTOR
263 POSTS

Hold on a second. First off, is this a diesel? I know that some NPR's have gas engines but most I have seen are diesels. If so, please do not use any more starting fluid on it. It is dangerous and could seriously damage the engine. In the meantime let me see if II can look up some things on your vehicle before I comment. I just wanted to make sure you stopped using ether if you had a diesel!

Nov 5, 2018 at 6:08 AM

JONNYB1963

CAR REPAIR CONTRIBUTOR
263 POSTS

While I am looking around, can you tell me a little more? Was there anything you did, or anything that happened just prior to this problem?

1. Have you checked the the fuel rail pressure?
2. Is there water in the fuel?
3. Can you hear the fuel injectors clicking when you crank?
4. Are there any trouble codes that you can share with us?

Nov 5, 2018 at 6:19 AM

STRAILER

CAR REPAIR CONTRIBUTOR
54,189 POSTS

It sounds like the auxiliary pump which feeds the main pump is out. Turn the key to the on position and place your hand on the pump to see if it is working. If so the main pump can be out. Here are diagrams to show you the location and what you are in for when doing the job.

Check out the diagrams (below). Please let us know what you find.

Cheers, Ken

Images (Click to enlarge)

Nov 6, 2018 at 10:35 AM