My 60 just died, fj60 350tbi

[chappysfj40]

SO HELLO ALL,
it has been for ever for me since i been on here, i checked into my new seabee battalion and been busy as s***, but i have been daily driving my 60 until it just died, no warning or anything.
so this is what i have tried so far, not much at all, actually pretty much nothing, hahahhah. i pulled a plug wire and put a plug in and i got spark, so my thoughts about a coil or something are out.

i have a 88 350 tbi and not sure the best place to start in the fuel side, i mean i just dont want to start buying crap and hoping, so i asking what is your guys experience in this and what helped and did not.

thanks in advance

chappy

 

[Elbert]

Swap out fuel filter and see what happens. Turn on key and make sure your electronic fuel pump is working.

 

[chappysfj40]

sorry i forgot to mention, i did swap the filter out,
i have not swaped the pump because i have to drain 25 gallons of fuel, should i be able to hear the pump running?

 

[Elbert]

Yes... when you first turn on the key you should hear the pump run for about 2 sec (key on but not start).

Is the truck "stone dead" turn over but no attempt to start or run.? Obvious guess is the fuel pump. You could slightly loosen the fuel connection at the throttle body and turn the key on for a sec or two and see if you have gas at the throttle body. No ECM codes, or other issues?

 

[ginericLC]

Yes you should be able to hear the pump running. You added an in tank fuel pump? Most folks use a frame mount fuel pump. If you don't have fuel I'd start with the pump and the EFI relay. TBIs usually will run without all of the sensors functioning, just not well.

Does it start at all or just die?

I chased and chased a problem in my TBI 350 60, in the end it was a temperature sensor. I couldn't get it to throw a code. After 3 weeks of barely running it finally threw a code. Basically the sensor was telling the engine that even it was the middle of summer it was ice cold so it was flooding.

Did you read the codes yet?

 

[chappysfj40]

yes... When you first turn on the key you should hear the pump run for about 2 sec (key on but not start).

Is the truck "stone dead" turn over but no attempt to start or run.? Obvious guess is the fuel pump. You could slightly loosen the fuel connection at the throttle body and turn the key on for a sec or two and see if you have gas at the throttle body. No ecm codes, or other issues?

The truck turns over but does not start.

yes you should be able to hear the pump running. You added an in tank fuel pump? Most folks use a frame mount fuel pump. If you don't have fuel i'd start with the pump and the efi relay. Tbis usually will run without all of the sensors functioning, just not well.

There might be a outside tank mounted pump, but where ever it is it is on the top side of the fuel tank. The tank is from a 96 chevy van, so not sure what i am in for.

Does it start at all or just die?

Does not start at all.

I chased and chased a problem in my tbi 350 60, in the end it was a temperature sensor. I couldn't get it to throw a code. After 3 weeks of barely running it finally threw a code. Basically the sensor was telling the engine that even it was the middle of summer it was ice cold so it was flooding.

Did you read the codes yet?

no codes read, i have o code reader here, i am in ventura, ca area if anyone is not busy this weekend. Hint hint. Lololo

thanks again guys and gals

 

[Dynosoar]

I sent you a PM

Dynosoar

 

[chappysfj40]

got the pm

 

[D'Animal]

You added an in tank fuel pump?

The FJ60 in the stock form did not have the fuel pump in the tank.

 

[Cruiserdrew]

The FJ60 in the stock form did not have the fuel pump in the tank.

He has a 350 so nothing is really stock.

Chappy==Good luck, my guess is that you'll beat this. Sorry I know nothing about Chevy EFI.

 

[D'Animal]

He has a 350 so nothing is really stock.

Chappy==Good luck, my guess is that you'll beat this. Sorry I know nothing about Chevy EFI.

I was checking his 350 out when he came by the shop. I just can't imagine anybody pulling the tank and installing a fuel pump in it and then reinstalling it. I would hate to think of him pulling it just to find out no pump is in it.

 

[Cruiserdrew]

I was checking his 350 out when he came by the shop. I just can't imagine anybody pulling the tank and installing a fuel pump in it and then reinstalling it. I would hate to think of him pulling it just to find out no pump is in it.

That would be ironic for sure. Maybe they installed an FJ62 tank with a pump?

 

[D'Animal]

He may be taking the fuel tank out.

https://forum.ih8mud.com/60-series-wagons/203101-long-range-fuel-tank.html

 

[chappysfj40]

this is intresting for sure, the PO did put a 96 chevy van fuel tank in it and i hope i can just rotate the tank down and see the pump there, but luck would most likely say it is in the tank. hahaha no worries all is good, the PO also threw in a extra fuel pump too. so we will see soon enough.

 

[lehiguy]

You should have a couple of relays for your system. The TBI wiring harness uses a special relay for the fuel pump. You should be able to hear the pump when you turn on the key. If you can't hear it, you need to make sure that your switched power to the relay is working. So I would start there. Check for fuel pump relay, power at the pump, if those check out but no pump action, it probably died. With the key on, you should be able to use a circuit tester at the injectors, each injector has two wires, there is a common color to both, this is hot. The different colored wires are actually grounds and go directly to the ECM that pulses them by grounding them. Check that. If there is no power there, you need to do some digging and find out how the install was done, but if it was done properly, there should be a relay that powers this circuit and it would likely be an after market job. Again, you are useing switched power to make the relay work, so check for a live wire at the relay with the key on (obviously this wire will be linked to a fuse in the rig, so start there.) You should have switched power, a ground, a lead to the battery and and one that energizes when switched power is applied. All these can be checked with a simple circuit tester, and I would bet anything you will find your problem.

So to recap, check fuses, check for switched power at the relays, check for power at each injector with key on. Listen for fuel pump operation and you should be able to narrow it down pretty fast.

 

[chappysfj40]

and i have a awesome tester, time to break it out....

i really forgot to start at the basics, a fuse, hmmmmm..... lets hope

You should have a couple of relays for your system. The TBI wiring harness uses a special relay for the fuel pump. You should be able to hear the pump when you turn on the key. If you can't hear it, you need to make sure that your switched power to the relay is working. So I would start there. Check for fuel pump relay, power at the pump, if those check out but no pump action, it probably died. With the key on, you should be able to use a circuit tester at the injectors, each injector has two wires, there is a common color to both, this is hot. The different colored wires are actually grounds and go directly to the ECM that pulses them by grounding them. Check that. If there is no power there, you need to do some digging and find out how the install was done, but if it was done properly, there should be a relay that powers this circuit and it would likely be an after market job. Again, you are useing switched power to make the relay work, so check for a live wire at the relay with the key on (obviously this wire will be linked to a fuse in the rig, so start there.) You should have switched power, a ground, a lead to the battery and and one that energizes when switched power is applied. All these can be checked with a simple circuit tester, and I would bet anything you will find your problem.

So to recap, check fuses, check for switched power at the relays, check for power at each injector with key on. Listen for fuel pump operation and you should be able to narrow it down pretty fast.

 

[Elbert]

ok Fuel pump in tank....then if so, you will not hear the fuel pump run at least for the most part I assume you can't. I was thinking you had an external fuel pump. Seomone may have setup a tank like the stock GM setup...ie in-tank fuel pump. I see now where you say it has a GM van tank.

I'm guessing you have no gas at the throttle body ( did you do the simple test I suggested)?

TBI...you can read the ECM codes with a paper clip. You ground the ALDL connector and the check engine light will flash. First flash if single stands for one.... next if quick flashes...you count them to equal whatever value... ie.. one slow flash = one...then three quick flahes = 3.... 1&3 =13. Code readers are cheap though...

Gonna suck if you have to drain the gas...

I would attempt to determine the hot wire that feeds the fuel pump. When key on...it should be "hot"... it its hot...then I would say you have a bad fuel pump. Or you need to do a simple test to physcially see if gas at throttle body.

 

[chappysfj40]

now what would happen if i just dump gas down into the throttle body? i ask becaus i honestly dont know much about TBI systems.?

 

[landcrusher909]

now what would happen if i just dump gas down into the throttle body? i ask because i honestly dont know much about TBI systems.?

I dont know crap about TBI myself Brother but try it what the hell if it fires then thats the problem. Goos Luck sorry we wont get to see you and the Family at SnT

 

[chappysfj40]

update update update......
good news is i finially got the wife to help me with the fuel pump to see if i could hear it, so the pump is turning on, so the next step is to actually pull the plugs, i check spark by putting another plug in a wire i pulled and it sparked, so i really need to look at the actual plugs now, tried to pore gas in the TBI and got nothing,,, so there is where i am at. yes super slow i am, lolololoo