94 BVille starts fine than dies (FIXED)
#21
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Find the fuel pump prime lead. It'* an empty green connector located above the battery. Get a piece of 8 gauge wire, put a 20 amp (I think that size) fuse on it and connect the battery positive to the lead. That should make the fuel pump try to run continuosly without the car running.
#22
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Sorry to interject here... why are you pulling a fuel tank w/o knowing the fuel pressure?
If your pressure is bad..you get to repeat it again.
If your pressure is bad..you get to repeat it again.
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Originally Posted by BillBoost37
Sorry to interject here... why are you pulling a fuel tank w/o knowing the fuel pressure?
If your pressure is bad..you get to repeat it again.
If your pressure is bad..you get to repeat it again.
(I am not a fan of Master fuel pumps, and it has always bugged me that someone else worked on my car)
also the pressure/volume was poor. I dont need a gauge to see fuel only trickle from the schrader valve.
A Taxi cost me $40 to get the pump and it would have been the same if I went and bought a fuel pressure gauge. $40 Taxi + $40 Gauge. I havent needed a fuel pressure gauge in 47 Years so I felt no real need to get one now. I would rather take a chance and get a better pump.
So I knew from the beginning that I wanted a new Delco pump and screen.(no matter what)
When I removed the sending unit I noticed the pump wasent connected correctly to the tube (poor mount or installation) that would let the pressure leak out.
I installed the new pump and it fits very nice on the tube and now I have piece of mind as well.
I will install the tank tomorrow and see if it runs.
Has anyone here ever needed to replace the fuel pump relay?
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Sorry...I missed the low volume low pressure post. and agree on your approach once you knew it was an issue.
Holler if we can help further.
On the FP relay. It'* a relay..so it can go bad, however your small amount of fuel would make one thnk it'* working. You could pull it, test it for continutiy in the energized state.
I have seen the contacts in some relays get carboned and while the relay engergizes..it can be making poor or no contact if the build up is too great. Although I haven't seen that in normal automotive relays to date.
Holler if we can help further.
On the FP relay. It'* a relay..so it can go bad, however your small amount of fuel would make one thnk it'* working. You could pull it, test it for continutiy in the energized state.
I have seen the contacts in some relays get carboned and while the relay engergizes..it can be making poor or no contact if the build up is too great. Although I haven't seen that in normal automotive relays to date.
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No prob at all. I really want to say thanks for all the advise i have received here, it has reminded me why I became a mechanic in the first place.
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Hey Bill... What relay could he swap as a test?
And BTW Mark.... After all of the issues I have seen with the Autozone and Advance Pumps, AC Delco was the only way for me to go... And here it is well over 1 year later the Pump is functioning great....
My Original Pump was still functioning and at times within Spec... Once it got warm the Pressure would Sink like a Rock.... I was easily able to drop to 32 Psi when the lowest spec'd for me was 48.... Its not to friendly running low on pressure at 6000 Rpms... <---- This is when I figured I had a fuel related issue and started checking... I would get 45psi with no Vac, and 38-40 with Vac applied... I was able to run on that for a while.. Noticed the car getting sicker, and knock counts went through the roof... Checked the pressure again and found the 32psi..... I dropped the tank and installed the new AC Delco... Been good ever since
Let us know how you make out
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And BTW Mark.... After all of the issues I have seen with the Autozone and Advance Pumps, AC Delco was the only way for me to go... And here it is well over 1 year later the Pump is functioning great....
My Original Pump was still functioning and at times within Spec... Once it got warm the Pressure would Sink like a Rock.... I was easily able to drop to 32 Psi when the lowest spec'd for me was 48.... Its not to friendly running low on pressure at 6000 Rpms... <---- This is when I figured I had a fuel related issue and started checking... I would get 45psi with no Vac, and 38-40 with Vac applied... I was able to run on that for a while.. Noticed the car getting sicker, and knock counts went through the roof... Checked the pressure again and found the 32psi..... I dropped the tank and installed the new AC Delco... Been good ever since
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Let us know how you make out
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FIXED! I almost forgot how excited I get after I fix stuff.
before when I turned the key to on I could here the pump go on to pressurize so I could hear it run.
when i depressed the schraeder valve there was very little pressure or volume for that matter. But for me to get to the store to buy a fuel pump gauge it was almost as much to get the pump (Taxi Ride).
So I FINALLY got up the nerve to remove the tank and noticed the pump wasent seated well on the tube I was hopeful that was the problem (technically the fuel was just leaking back into the tank and wasent able to pressurize the line correctly.
So swap the pump for a new Delco, install a new sock and filter, replace the tank and VOILA!
BigRed is alive again.
Thanks to everyone here that took the time to read the thread and offer advise.
before when I turned the key to on I could here the pump go on to pressurize so I could hear it run.
when i depressed the schraeder valve there was very little pressure or volume for that matter. But for me to get to the store to buy a fuel pump gauge it was almost as much to get the pump (Taxi Ride).
So I FINALLY got up the nerve to remove the tank and noticed the pump wasent seated well on the tube I was hopeful that was the problem (technically the fuel was just leaking back into the tank and wasent able to pressurize the line correctly.
So swap the pump for a new Delco, install a new sock and filter, replace the tank and VOILA!
BigRed is alive again.
Thanks to everyone here that took the time to read the thread and offer advise.
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