Fuel Issue, vehicle died on road, won't stay running

[PamPoovey]

Saturday, my 95 died on a fairly busy road. At the time, it did start back up, it sounded weak -like it was struggling to stay running like it is out of fuel, and dies out moments later. It would not stay running long enough to drive it. Today, it won't run, but does have spark.

 

My neighbour, a forklift mechanic and car enthusiast, did some testing. The fuel pump is only putting out 6.7 volts. Is normal? He also spoke of how it would register power and not register power moments later, using a circuit tester. https://www.amazon.com/dp/B0BRK778L4?psc=1&ref=ppx_yo2ov_dt_b_product_details Today, it wouldn't even run, not even for a moment. Is the low volts normal for a fuel pump? 

 

My neighbour pulled the fuel pump out, connected it to the power, and had me put the key in the ON position. He said the pump felt like it turned on. 

 

Any suggestions or ideas? Anyone experienced this before?

Edited July 22, 2024 by PamPoovey

[level9]

Not sure where he tested in the circuit but if he checked the positive lead to the fuel pump against the chassis (ground) to determine if the fuel pump was even getting +12v power and it's not then I would replace the fuse (for good measure) and then also the fuel pump relay (relatively cheap, easy) and see if that resolves the issue.

[PamPoovey]

Yes sorry, that is how he tested it. 

 

And thank you very much for your advice! 

[FirstGenFreak]

Had a fuel pump go on me not long ago, always a fun part of your day.

The aftermarket pump then failed a few weeks after, so I replaced it with a working 35yo OEM second hand part, which has given me more confidence  

[PamPoovey]

Yay!!! I had similar issue once, but with a starter. And then, the next starter. Then, 6 months later, the starter again.

 

 

I wish mine were to be that simple! I am worried about it being extensively complicated like fuel injectors (since they aren't easy access). 

 

The relay has to be ordered. Big surprise lol hopefully, it will ship tomorrow. 

[PamPoovey]

I am sorry, I've been meaning to update y'all but being a truck driver sucks sometimes...

 

So I am lacking knowledge in the mechas department, so back in Jan, vehicle de ided to not run, but would start. I guessed because the fuel pump was last replaced in 2007. That turned out not to be the problem in Jan (it was the distributor whichnprobablynlasy replaced in 2009), so I hung onto the fuel pump. I decided to swap back to the old fuel pump because that was something I could try on my own. It started right up! POS Delphi, with a 30 day warranty. 

 

I found a made in Japan fuel pump in UAE : https://partsouq.com/en/search/all?q=1704241G03 -which just arrived yesterday, for back up purposes. 

 

Thank you all for your help and support!!!

[adamzan]

Nice work! My guess would have been the leads on the top of the sending unit getting corroded, but not sure how bad the rust on cars is where you are. It was a fairly common problem but once replaced never happened again.

[PamPoovey]

Thank you!!! I wondered about that myself, just due to the age of the vehicle. This Pathy has spent 18yrs in Vegas, so rust isn't a dominant concern for the time being.