Help! No codes, no start, no run...

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Originally Posted By: DrDusty86
We try our BEST! lol
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THANKS ALL!!!
 
Originally Posted By: Brons2
Wow, live troubleshooting right here on BITOG
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I feel inspired, I think I'll go change my oil now
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It's called "BITOG Roadside Assistance"
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A little late to the party but, was it getting fuel? As already mentioned banging on the gas tank might have gotten you home, there is also a possibility the computer is bad. I think its the fuel pump though.
 
Originally Posted By: JHZR2
Originally Posted By: DrDusty86
I would pound the gas tank by hand the ignition on to see if it "jump starts" the pump. I know GM trucks/SUVs are bad about pumps dieing from 88-07 or so. I have told many people this and it has let them get home.
Fuel filter??
Let us know how it goes.
Dusty


Should have tried this... Pulled the back seat and started slamming down... Oh well...


I agree with DrDusty. Instead of pulling up the seat, try pounding on the bottom of the tank if possible. Since the pump is usually on the bottom, you'll have the most effect there.

To answer your earlier question, yes, you typically should hear the pump whir for a few moments after turning on the key.
 
Originally Posted By: demarpaint
A little late to the party but, was it getting fuel? As already mentioned banging on the gas tank might have gotten you home, there is also a possibility the computer is bad. I think its the fuel pump though.


That's a good question. When the car wasnt running at first, I pushed the schrader on the fuel rail and got pressurized fuel out.

But trying to do a roadside fuel pump check, I depressurized the fuel rail by absorbing the fuel into a napkin, and then cycled the key to on and tried cranking a few times. Nothing. And there was no noticeable fuel available from the schrader valve again.
 
Originally Posted By: The_Eric
Originally Posted By: JHZR2
Originally Posted By: DrDusty86
I would pound the gas tank by hand the ignition on to see if it "jump starts" the pump. I know GM trucks/SUVs are bad about pumps dieing from 88-07 or so. I have told many people this and it has let them get home.
Fuel filter??
Let us know how it goes.
Dusty


Should have tried this... Pulled the back seat and started slamming down... Oh well...


I agree with DrDusty. Instead of pulling up the seat, try pounding on the bottom of the tank if possible. Since the pump is usually on the bottom, you'll have the most effect there.

To answer your earlier question, yes, you typically should hear the pump whir for a few moments after turning on the key.


Wasnt practial on the hot tarmac in a traffic jam. If I was to do it, I would have had to raise the car on a scissor jack and brave my way under... No thanks.

Ive never heard the pump spin up on this car, though Im very familiar with it on others. I was hoping to see new fuel in the rail that I depressurized earlier, but no dice.

Its in the shop now... will see.

I did notice that the last time I got gas in the car was March!

Now, I seldomly buy fuel in my truck or diesel 240, but diesel is more stable and the truck is garaged. Wonder if this is ethanol manifesting itself?
 
Originally Posted By: JHZR2
I don't have starting fluid on the side of the road...

No distributor. The car had been running for literally 70 miles of interstate and local roads, up to high speeds and all, no problem.




I was wondering if I had water in my fuel line... I bled all the gas out, and now just get a hiss of vapor. Cycling the key doesn't seem to cause new fuel to come out... Does that mean dead fuel pump? I can't hear this one spin up the way I can on other cars, but that has always been the case...



I think you are on to the problem. You should hear the fuel pump run for a few seconds with key on. Listen thru the fuel filler pipe. With just one cycle you should have enough pressure to have fuel escape with a press of the shrader valve. Try to cycle the key 3-4 times and then see if it makes enough pressure to start the car. That will prove a dying fuel pump. If the pump is already dead - then starting fluid will prove that if it starts using the starter fluid.

As a last ditch effort - switch the FP relay with another one.
 
Originally Posted By: GMBoy
Originally Posted By: JHZR2
I don't have starting fluid on the side of the road...

No distributor. The car had been running for literally 70 miles of interstate and local roads, up to high speeds and all, no problem.




I was wondering if I had water in my fuel line... I bled all the gas out, and now just get a hiss of vapor. Cycling the key doesn't seem to cause new fuel to come out... Does that mean dead fuel pump? I can't hear this one spin up the way I can on other cars, but that has always been the case...



I think you are on to the problem. You should hear the fuel pump run for a few seconds with key on. Listen thru the fuel filler pipe. With just one cycle you should have enough pressure to have fuel escape with a press of the shrader valve. Try to cycle the key 3-4 times and then see if it makes enough pressure to start the car. That will prove a dying fuel pump. If the pump is already dead - then starting fluid will prove that if it starts using the starter fluid.

As a last ditch effort - switch the FP relay with another one.


I'm new, so please help me understand. If the vehicle STARTS using the starter fluid, how does that confirm a bad fuel pump? Wouldn't that perhaps prove bad gas??? Which I believe most realize it's probably a fuel pump(or extremely blocked fuel filter
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).

Thanks.
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Wife's coworker had a "classic" saab that he traded on a 96-ish "GM saab".

Only having it a year, it stranded him three times. Was a fuel pump at least two of those times.
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I remember that POS 95 Caprice Classic I had did the exact same thing to me as you experienced. It was hot out, I sat behind it, and kicked the H_ell out of the gas tank and managed to get it to start. Oh how I hated that car!

If they suspect the fuel pump have them check all wiring and connections going to it. I had a fuel pump go out on me once and before I dropped the tank I found a connection was bad and had water in it. That saved me a lot of time and cash vs dropping the gas tank.
 
Originally Posted By: ltslimjim
Originally Posted By: GMBoy
Originally Posted By: JHZR2
I don't have starting fluid on the side of the road...

No distributor. The car had been running for literally 70 miles of interstate and local roads, up to high speeds and all, no problem.




I was wondering if I had water in my fuel line... I bled all the gas out, and now just get a hiss of vapor. Cycling the key doesn't seem to cause new fuel to come out... Does that mean dead fuel pump? I can't hear this one spin up the way I can on other cars, but that has always been the case...



I think you are on to the problem. You should hear the fuel pump run for a few seconds with key on. Listen thru the fuel filler pipe. With just one cycle you should have enough pressure to have fuel escape with a press of the shrader valve. Try to cycle the key 3-4 times and then see if it makes enough pressure to start the car. That will prove a dying fuel pump. If the pump is already dead - then starting fluid will prove that if it starts using the starter fluid.

As a last ditch effort - switch the FP relay with another one.


I'm new, so please help me understand. If the vehicle STARTS using the starter fluid, how does that confirm a bad fuel pump? Wouldn't that perhaps prove bad gas??? Which I believe most realize it's probably a fuel pump(or extremely blocked fuel filter
37.gif
).

Thanks.
grin.gif



It would prove a fuel related problem. Further diagnosis would be needed from that point.

Next step would be to see if the pump builds pressure. Then I would put a fuel pressure gauge on it to make sure that pressure is within spec. Dieing pumps may still work, but not well enough for the vehicle to run.
 
Originally Posted By: JHZR2

That's a good question. When the car wasnt running at first, I pushed the schrader on the fuel rail and got pressurized fuel out.

But trying to do a roadside fuel pump check, I depressurized the fuel rail by absorbing the fuel into a napkin, and then cycled the key to on and tried cranking a few times. Nothing. And there was no noticeable fuel available from the schrader valve again.


If the pump failed while driving you would still have line pressure as you saw. However, with a dead pump there was no way to move that fuel forward and into the engine as no new fuel was being pumped into the lines. After bleeding the lines you would then not see any more fuel.

Sounds like a dead FP to me but?
 
fuel filter is my guess. could be 90% plugged up enough not to allow the engine to fire up. he was getting fuel, but it could have been 10% of what was normal.
 
I don't know that I was getting NEW fuel...

The car had been additives from the start with things the like of FP, LUCL, TCW3, SI-1, etc.

If it is the pump, then so much for additives and fuel pump lubricity... The pump only had 55k.
 
Originally Posted By: JHZR2
Originally Posted By: The_Eric
Originally Posted By: JHZR2
Originally Posted By: DrDusty86
I would pound the gas tank by hand the ignition on to see if it "jump starts" the pump. I know GM trucks/SUVs are bad about pumps dieing from 88-07 or so. I have told many people this and it has let them get home.
Fuel filter??
Let us know how it goes.
Dusty


Should have tried this... Pulled the back seat and started slamming down... Oh well...


I agree with DrDusty. Instead of pulling up the seat, try pounding on the bottom of the tank if possible. Since the pump is usually on the bottom, you'll have the most effect there.

To answer your earlier question, yes, you typically should hear the pump whir for a few moments after turning on the key.


Wasnt practial on the hot tarmac in a traffic jam. If I was to do it, I would have had to raise the car on a scissor jack and brave my way under... No thanks.

Ive never heard the pump spin up on this car, though Im very familiar with it on others. I was hoping to see new fuel in the rail that I depressurized earlier, but no dice.

Its in the shop now... will see.

I did notice that the last time I got gas in the car was March!

Now, I seldomly buy fuel in my truck or diesel 240, but diesel is more stable and the truck is garaged. Wonder if this is ethanol manifesting itself?


I think too many people blame ethanol for too many things. I've used it since it was introduced to our market (maybe 15yrs ago?) and have yet to have a problem or even see one in an automotive application.
 
Maybe, maybe not. If it turns out that there was corrosion or excess water, then maybe so. Note that I said that I seldom buy fuel in my truck, and havent had any issues... But the truck is garaged while this car is not.

Last time I bought fuel in the car was March. Didnt top it up before going out. There is at least an outside chance that all those heat/cool cycles caused some condensation...
 
You know it COULD be that the additives may have had unintended consequences. Again that is why you really NEED to consider NOT using them. When the major auto makers test their cars for durability they DO NOT test them using strange additives that they often times explicitly state not to use.

That is why most car makers state to NEVER use UNapproved additives, usually only cleaners with an approved detergent like techron is suggested, and that only have Kero as a carrier which is the most mild solvent so it won't damage anything.

who the heck knows what is really in those other products like MMO and Kreen not to mention most others. They called them snake oils for a reason.
 
All personal opinion. No facts to back anything up.

Back on topic, clogged filter will generally allow a start as you can still build pressure, but not enough flow to run well.

Any way to strike a blow to the tank? Many times that will get you home, sure sounds like a bad pump from here. But it can be wiring, pcm, bcm, etc. as well.
 
Had the tank vent hose plug on a buddy's Mustang that caused the car to stall out. We cracked the gas cap to let air in to get us home.
 
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