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Help! 92 Chevy Truck starts then dies... FIXED!!!

I got tired of messing with the hard steel lines and trying to get them into the back of the throttle body so the last motor I did in the Blazer I took the hard lines off and had them cut and put steel braided fuel line on the factory ends instead.

Makes it much easier to hook up when you need to; not to mention to get them to reach the throttle body since I have an Edelbrock intake which sits taller and a throttle body spacer.

I'll have to look into the CFM Technologies part for mine but still need the other tool for working on other peoples stuff.
 
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dhcomp said:
After almost cross threading the fittings at the back of the TBI about 4 times, i have a hard time thinking i could easily move them enough to get that fitting in there.

Does that one replace the bung that is screwed into the TBI? If so, won't add too much length.....but enough to make it difficult i would think.
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Well maybe I got lucky but I didn't have much trouble installing that fitting. My only problem was the gauge hitting the bottom of the air cleaner at first. Easy fix. This was on an 88' IFS pick up. I'd snap a pic to show clearance but I sold this truck a while ago.
 
Philly87 said:
I got tired of messing with the hard steel lines and trying to get them into the back of the throttle body so the last motor I did in the Blazer I took the hard lines off and had them cut and put steel braided fuel line on the factory ends instead.

Makes it much easier to hook up when you need to; not to mention to get them to reach the throttle body since I have an Edelbrock intake which sits taller and a throttle body spacer.

I'll have to look into the CFM Technologies part for mine but still need the other tool for working on other peoples stuff.
Click to expand...

Actually now that I think about it... The PO of my truck had installed braided line already. That's probably why my install went so smoothly.
 
Well I didn't get to work on the truck last night. Look like Thursday will be my next chance so I'll update then.

To be continued...
 
Ok so the new ignition module went in yesterday and unfortunately didn't do the trick. So now I wait for the fuel pressure tester adapter I ordered and go from there.

I really didn't want to have to pull the tank in a dirt driveway. I'll just pretend it’s a truck on the trail...

Not to mention dealing with the weather here. Sunny skies and low 80’s for the next 10 days. :whistle:
 
I think where he is going is consider taking the bed off instead of dropping the tank.

May be easier depending on condition of your truck / hardware.
 
I tried the removing of the bed thing with a late 90's S-10 pick up just a few weeks ago for a friend,,,, honestly, it's about the same really, unless you have air tools to zip off all the bolts needed to remove the bed, I personally didn't see any advantage to removing it and struggling with lifting it out of the way, especially since I can drop a tank by myself, whereas it takes at least two strong people to lift that bed up and over the tires.
 
dhcomp said:
It won't start at all with a bad module. At least mine wouldnt'. Absolutely no fuel from injectors when mine went.

My guess is fuel pump. Do you hear the pump spool up when you turn the key on?

Try banging on the bottom of the tank, and see if it will start momentarily.
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When mine went it was gradual over 3 weeks and would have trouble starting and gradually run worse until it finally gave way.
 
Once I test fuel pressure and verify that it is the pump I'll be dropping the tank out of this one; otherwise I'll have to pull a tool box thats full of tools out and fight the extra weight of a headache rack too.
 
So I finally got a chance to check fuel pressure on this truck and it showed 0 PSI. The funny thing about that was that I could hear the pump kick on and prime when the key was first cycled on.

So out comes the tank to inspect.

The problem... The 2" hose that runs between the pump and the sending unit had completely disintegrated and had turned to complete mush.

Keep in mind this was the replacement hose that came with the Airtex pump replaced about 3 years ago. That would explain why I could hear the pump prime and hear gas dripping back in the tank.

Thanks for all the input.

-Phil
 
I just had that happen to mine last year, was driving home from somewhere, engine just started stumbling out of the blue, check engine light came on, luckily I was on back roads and only about a mile or so from home, I couldn't get much speed out of it at all.

tested some things, I knew the pump was replace MAYBE a year prior to this, so I really didn't bother checking the fuel pressure until I basically ran out of other ieas and replaced a $40 map sensor.

Hooked up the gauge kit and sure enough like 5psi, dropped the tank and found a slit in that 2" piece of rubber hose... Never seen or heard of that before this happened to me, I posted something about it up on here awhile back with pictures as well.

Good 'ol Airtex, cheapin' out on supplies to make an extra buck.. :rolleyes:
 
4xcrazy said:
Good 'ol Airtex, cheapin' out on supplies to make an extra buck.. :rolleyes:
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Sure enough. I need a pump for my Blazer. I'm thinking of doing a Bosch this time around.

Any suggestions? Rock Auto has the pumps cheap and they carry Delphi too.
 
I bought my replacement through napa, per my uncles advice, he worked there at the time for one, but the new pump was a factory replacement.. Cost was alittle more though.

I'm also not one for Bosch products, I personally just don't see much quality in theirs either, especially after trying to run some of their spark plugs in my old '88 Camaro, and burning through them in a matter of about 3 months, also have heard of alot of bad issues with their o2 sensors too.
 
Go delphi. If the stock ones are running 200K+, why do something else?
 
dhcomp said:
Go delphi. If the stock ones are running 200K+, why do something else?
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THAT was the one, I couldn't remember the name, wanted to say AC Delco, but I know the place I used to buy most of my parts from doesn't carry that brand in pumps anymore.
 
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