NVW
Well-Known Member
I'm thinking bad injector, or rocker/rocker button as Les said. Sounds like a dead cyl.
-
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!
Problems registering? Click here to contact us!
Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!
Working on the 93......
- Thread starter deejaaa
- Start date
Will L.
Well-Known Member
Leroy will one da finish the centermount ATT...think not just etter balance of power and heat, but how much easier it is to get to injectors and glowplugs...
Oh yeah, and then Hummers and hmmwvs will be much happier...Man I wish I could have took up Dennis' offer to work with me on fitting it onto mine.
Oh yeah, and then Hummers and hmmwvs will be much happier...Man I wish I could have took up Dennis' offer to work with me on fitting it onto mine.
he didn't say anything about that to me when i was at his house the other day. hmmmm....
here is the turbo:
and not:
it's not like i don't like 'em, they're always in my way! when i get it running right, i might put it back on:
here is the turbo:
and not:
it's not like i don't like 'em, they're always in my way! when i get it running right, i might put it back on:
Will L.
Well-Known Member
Did you do the loosen 1 injector nut at a time thing to try to find an exact cylinder checking both sides?
Double check all of the new glowplugs are tight and not leaking from bad metal crimp onto ceramic.
Really sounds like 1 dead cylinder.
Double check all of the new glowplugs are tight and not leaking from bad metal crimp onto ceramic.
Really sounds like 1 dead cylinder.
As much crap that was in your fuel system Im thinking IP problem now. Will it rev up and clear up? Whats your fuel PSI?
snarl95
Well-Known Member
Whats with the smashed line on the injector? It also appears to be missing line.
smashed line is a homemade fuel return stop. missing line got knocked off removing the vc.
i'm kind of leaning towards what Leroy said: IP. the noise seemed to come from that area and i had bumped up its case pressure. i think i will go ahead and put on the old IP to eliminate my suspicions.
if it's not that, i suspect HG.
i'm kind of leaning towards what Leroy said: IP. the noise seemed to come from that area and i had bumped up its case pressure. i think i will go ahead and put on the old IP to eliminate my suspicions.
if it's not that, i suspect HG.
Last edited:
replaced the IP with the one that was in it before the new one. have injector lines connected. need to ground the external fuel shut off solenoid. connect fuel line from FFM. tomorrow i need to get a flare plug for the oil feed line on the turbo to stop flow.
i will give it a start tomorrow minus the turbo and intake.
i will give it a start tomorrow minus the turbo and intake.
Hope you get it fixed. You get other vc off?
i went ahead and replaced the IP instead. if it still does the same, then i will continue to diagnose. the drivers side is the easiest and will be an absolute thrill to work on, compared to the 'other side'. i'm thinking that the IP has a real good chance to be the problem, considering what i did to it. i will know as soon as i block off the oil feed line.
OPS relay.
Length of extension wires; 24“, remove convoluted tubing from OPS wires before cutting. Wire colors for relay extension:
Orange: hot: Cut orange wire from OPS plug about 3” from plug and tie in orange extension wire. Crimp and heat wrap.
Gray: OPS plug: approximately 2.5” from plug, cut gray wire. Wire from OPS plug connects to gray extension wire. Crimp, heat wrap.
Light purple; LP: on cut wire going to LP, connect Purple wire, crimp, heat wrap.
Brown; ground: Much shorter because it's ran to relay’s mounting screw.
Mount relay under electric shroud on passenger firewall. Mount ground with same screw mounted relay with. Replace shroud.
Relay is numbered, extension wires hook to relay in this order; #30; orange power wire (wire is hot with key off, don’t ground out). #85; brown ground wire, #86; gray wire from OPS, #87; purple wire to LP.
Oil Pressure Switch: Replace with AC Delco D1808A
Relay Parts Options:
Relay: NAPA - AR143
Relay Connector: NAPA - ECH EC23 or Relay Connector (with mounting bracket): NAPA - ECH EC38
"Marine" weather proof crimp connectors with heat shrink "built in". Available at O'reillys and others. Use heat gun.
92-94: Instead of tapping Orange wire, get 12v for relay from Power Block on passenger side firewall.
---------------
There're 2 circuits in OPS : 1 for gauge, 1 to power lift pump.
Orange; 12v (hot all time ), white; to cluster oil pressure gauge, grey; 12v to LP.
Putting relay unloads OPS: grey is used only to trigger relay, relay supplies power to LP.
LP test, OPS bypass: jumper 2 outer pins on ops connector using small paper clip. Careful not to let clip touch metal; will spark, burn out wiring harness to LP.
Length of extension wires; 24“, remove convoluted tubing from OPS wires before cutting. Wire colors for relay extension:
Orange: hot: Cut orange wire from OPS plug about 3” from plug and tie in orange extension wire. Crimp and heat wrap.
Gray: OPS plug: approximately 2.5” from plug, cut gray wire. Wire from OPS plug connects to gray extension wire. Crimp, heat wrap.
Light purple; LP: on cut wire going to LP, connect Purple wire, crimp, heat wrap.
Brown; ground: Much shorter because it's ran to relay’s mounting screw.
Mount relay under electric shroud on passenger firewall. Mount ground with same screw mounted relay with. Replace shroud.
Relay is numbered, extension wires hook to relay in this order; #30; orange power wire (wire is hot with key off, don’t ground out). #85; brown ground wire, #86; gray wire from OPS, #87; purple wire to LP.
Oil Pressure Switch: Replace with AC Delco D1808A
Relay Parts Options:
Relay: NAPA - AR143
Relay Connector: NAPA - ECH EC23 or Relay Connector (with mounting bracket): NAPA - ECH EC38
"Marine" weather proof crimp connectors with heat shrink "built in". Available at O'reillys and others. Use heat gun.
92-94: Instead of tapping Orange wire, get 12v for relay from Power Block on passenger side firewall.
---------------
There're 2 circuits in OPS : 1 for gauge, 1 to power lift pump.
Orange; 12v (hot all time ), white; to cluster oil pressure gauge, grey; 12v to LP.
Putting relay unloads OPS: grey is used only to trigger relay, relay supplies power to LP.
LP test, OPS bypass: jumper 2 outer pins on ops connector using small paper clip. Careful not to let clip touch metal; will spark, burn out wiring harness to LP.
Last edited:
You sure the LP was primed? was kind of loud. Maybe cause is bouncing on the core support?
Bats seemed a little low. FSOS working? GPs working? not sure if I heard GP relay (still don't mean GPs are working though). You just put new ones in though? Hmmm?
My gut tell me IP, what is story on that IP again? came off running engine right?
Might be worth it to pop other VC off and have a look.
Bats seemed a little low. FSOS working? GPs working? not sure if I heard GP relay (still don't mean GPs are working though). You just put new ones in though? Hmmm?
My gut tell me IP, what is story on that IP again? came off running engine right?
Might be worth it to pop other VC off and have a look.
not sure of prime but IP was full when i removed the cover.
shut off isn't even hooked up(remember, it's external).
GP's are working.
IP had fuel/case pressure turned up. i swapped it for this one thinking it was the one i had took off originally but it wasn't. so now i'm putting the one back in that i replaced with the turned up one.
i will remove other vc if/when i get it started to determine if it's the IP or not. i don't want to have too many questions without answers.
here's the clincher: if i find out the problem isn't IP related and i get it fixed: i will put the turned up IP back in! how's that for irony?