If any of you saw my post yesterday, you will know I cannot get my 82CE
started. We checked the electrical/distributor/ignition system yesterday,
and all checked out. The problem is no fuel to the TBI'S, and no pressure.
Now we are thinking fuel pump relay, or fuel pump.
Some questions:

1. Where is the fuel relay located on the 82CE
2. How can I check to see if it works
3. Is there a 20 second delay
4. If the relay is working, and its the pump, can the pump be removed
from the filler assembly, or does the tank have to come out.

Any advice is greatly appreciated...

 

The relay is located in the pass. rear compartment, take out the inner liner, it's mounted under there, right behind the seat.

You can check if it's the relay by hot wiring the pump to the free 12V ign. sqitched terminal on the left side of the fuse box. If the pump runs (you can hear it) it's the relay.

The pump can be taken out w/ the tank in car. Remove the filler door & rubber grommet under it. Pull the power off the battery, undo the pump's electrical connection. Undo all fuel lines and remove the flange bolts. Now lift the assembly out, to get it out you mut rotate it a few times, it's a tight fit and it only comes out in 1 position.

If you replace the pump, get a TPI pump, it's a lot more potent than the stock L83 pump.

This is the sending/pump assembly.


There's no delay on the pump. There's a timer on the relay, if you put the ign. in on the pump will run. If the ECM receives no cranking signal the pump will be turned off after a few seconds. When uou turn the key to crank (without turning it back to off) the pump will start to run again if the crank signal is received by the ECM.

If you put the ign in on and then off again the pump won't run immediately when you put it in on again, then uit takes a couple of seconds in the off position to be able to turn it back on (but if you start cranking immediately it will go back on)

Marck

 

Sorry about 1 and 2, don't know off the top of my head, I'll check into it if someone else doesn't answer first.

3. You should get an initial pulse the minute you turn on the ignition, then while you are cranking, you should be sending gas through the TBI's, no 20 second delay.

4. The pump can be removed without removing the tank. Disconnect battery, remove the filler cap and boot, disconnect the electrical connection, your hoses(don't get the return and supply mixed up), the bolts, then the fun part...as you lift out the entire filler/sending/pump unit, you have to twist and turn to work it out the hole. One of those puzzle kind of things but it does come out. Chevrolet could have made the hole about 1/2" bigger and no problem but someone had a brain fart I guess and made it difficult. :smash:

 

Marck, you do this to me all the time. This time I was typing when you beat me to it again... :lol:

 

Sorry man :) ;)

 

If it turns out to be the fuel pump, MAKE SURE that you put clamps on the hose that connects the pump to the tubing. GM did not do this originally and if YOUR luck is anything like MINE, the pump will disconnect itself from the tube at a REAL inconvient time!!!!

 

Thanks guys, you have really helped me out...

Glad I dont have to drop the tank!! :yesnod:

 

I had a similar problem with my '82. There is a 20 amp fuse located above the battery that was blown. Try checking that out.

Tony

 

Had the exact same problem w my 82. Had spark and ign. but no gas to the throttle bodies. Turned out to be the oil pressure saftey switch that kills the fuel pump in case of a wreck. located at the back of the intake
Gotta love that ceasefire injection. :chevy

 

Had the same problem. There's a short piece of rubber hose connecting the fuel pump to the steel fuel line (located in the gas tank). This hose tends to rot and, in my case, slip off. It's fairly easy to get to through the gas tank filler opening. May as well change the filter mesh while you’re in there. Good luck.

 

That fuse is in the orange RAM power lead. If that is shot the CEL also doesn't work, easy to check.

That one is not for a wreck, it's a protection for when the oil pressure is too low. If the pressure is too low the engine can't start or stops to protect it. Pressure must be VERY low for this thing to interveign. An easy check is to just pull it off, the engine will start without it. I've seen them damaged before but they hardly ever fail & short out (so the pressure seems to low), they act as a breaker switch in the 12V pump feed.

Marck


[Modified by Twinnie, 11:47 AM 9/17/2002]

 

This Forum is the greatest!! Wish I could solve all my problems this way!!

I will try all these and let you all know the outcome.

Thanks again for all the help. :cheers: