• Welcome to The Truck Stop! We see you haven't REGISTERED yet.

    Your truck knowledge is missing!
    • Registration is FREE , all we need is your birthday and email. (We don't share ANY data with ANYONE)
    • We have tons of knowledge here for your diesel truck!
    • Post your own topics and reply to existing threads to help others out!
    • NO ADS! The site is fully functional and ad free!
    CLICK HERE TO REGISTER!

    Problems registering? Click here to contact us!

    Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!

Need some help

pdocontario

New Member
Messages
5
Reaction score
0
Location
Ontario, Canada
new here! i appreciate any input from you guys.


okay so i've finally dug my old 1996 6.5 Turbo 4x4 out of 2 feet of snow.

took two brand new batteries to get the thing fired over, got it unstuck, then came my problems.


one of my fuel injector return lines has gone missing from the drivers side and is pissing fuel everywhere while the engines running. just to keep the engine running i've plugged the nipple the was pissing fuel. should not be a big deal, return line kit already ordered. just wondering if this rig i have set up is hurting the engine? i'm just moving it around with the set up shown. that hose with the gear clamp is plugged six inches down.
asu6y9yj.jpg


second, turbo is not spooling. i have a second turbo set up that i plan to replace the seized one with. is there any gaskets i should replace before bolting the new one on?

third, temp gauge in the dash is not working. i found a little blue sensor on the drivers side of the engine block with a greenish wire beside it. the wire is busted off the blue 'sensor'. is that my temp gauge sensor? and where do i find a replacement.. (GM part #??)
nuba4eju.jpg


fourth, very slow coolant leak coming from somewhere. it looks like it's from the rad, but when i parked it last year the rad did not leak. replaced a gear clamp on the upper house that was leaking as well. i'm puzzled.

fifth, when you push the brake pedal in, the system feels like it's dry. it's really soft and easy to push in. lots of play in the pedal before the brakes engage and when they do engage, it's quick and rather violent. brake fluid reservoir is full. brake warning like it on. time to change them?

finally, glow plugs are cycling. from cold or warm doesn't matter, WTS light cycles on and off in slow flashes. my guess is a relay or controller of some sort, but figured i'd hear what you guys have to say.


thanks in advance for any input, you guys are always great help.
 
Welcome to TTS

Turbo doesn't use a gasket, that is the temp sender I don't think the blank return hose will hurt but others may know better. Maybe the sensor in the coolant crossover is bad, it sends info to the ecm for the glow plugs.
 
The sensor is for temperature, you have two. One is for the gauge, the other sends info to the control system for fuel timing and glow plug control. On the connector I can't remember which is which for your truck, definitely carry it into a napa and they can match it up for replacement if you can't reconnect it with a splice.

The plugged fuel return line will cause the injectors to back up and not function properly. A minute or two ok, but longer than that and it could cause streaming out the injector and damage pistons. Better to make a mess if your back is against the wall than put holes in the pistons.

I would flush brake fluid to start, just bad fluid can cause that, and then look at master cylinder, assuming pads and shoes are ok.
 
sorry for the prolonged update.

okay. first off, a temporary fix for the lines coming in this week for the injectors. no leaks and i'm happy with it for a couple days.

second, rigged this puppy up for the temp now the gauge work perfect.
pe2yta4e.jpg


as for the brakes, found a pin hole leak that last pressure while it sat for the time it did. found two couplings in the line and replaced it and front callipers and pads for the heck of it.
nepyhyma.jpg


ordered new injectors and glow plugs+controller and cdr valve kit to put in this old girl.

found a potentially big problem though. i can't see any wires for a glow plug for this cylinder or a head for the actual glow plug.. potentially snapped ? driver's side injector closest to the firewall.
6unu9yre.jpg


oh and waiting on a turbo solenoid. gonna try and switch that out and see what happens. wastegate moves free and took the intake off the turbo and the wheels spins like new. either a vac line or the solenoid i'm thinking.
 
Back
Top