paradit
05-25-2008, 00:23
Hi Everyone,
I thought I would write this in here, since I couldn't find a single thread in the search engine relating to the problem i WAS experiencing.
Background
Bought my sub in NY state and drove it across the continent to Edmonton, Alberta. besides blowing the alternator the trip was problem free. Averaged about 19mph at 75mph the whole trip (empty). Got home and started the paperwork/inspections. my trusty mechanic for my car was given the task of doing the safety inspection. He added gas during the process.
After I got my truck back from him, it started to exhibit what I called "surging" (but after searching through this forum its not what everyone else here calls surging). What was happening was that at a steady speed, the transmission would slip down a gear, then back up-down-up-down-up........took the truck to the stealership thinking they "knew their stuff".
Dealership Diagnosis
After checking the fuel, they discovered a lot of particulate and generally bad gas. They immediately assumed my problem was related to fuel and recommended replacing all injectors,injector pump, glow plugs, drop and drail fuel tank, flush lines, replace filter..........estimate $6600Cdn. I just paid 7k for the truck so i said i'm going to get a second opinion
GCL Diesel Injection Service - Edmonton
On the recommendation of a friend, dropped the truck off at GCL here in town. They had the truck for about 4 days with lots of phone updates. lots of "tried this, but didn't work, still searching for problem". Then i got the "aha" phone call. Trevor there discovered the problem.
The Culprit
Trevor discovered that the engine temperature sensor (i'm a layman, but a different sensor than the one that drives the coolant temp gauge) was constantly outputting -38C. He said after reading in the books, if the engine thinks its cold, it won't let the engine stay in O/D. And so the engine would go into O/D, then drop back to 3rd gear.
He swapped the $30 part with a new one, also replaced the lift pump as it was only 1.5psi output and the truck is running fine now. Total bill $520.
Epilogue
Monday I visit the stealership to stomp my feet and try and get something for free. Not leaving without.
I did a lot of reading on this great website - thanks to the tech experts who so often post their knowledge freely.
Tyler
Edmonton, AB
99 K1500 Suburban 4L80E (i think) no mods but now reading as to my best choices.
I thought I would write this in here, since I couldn't find a single thread in the search engine relating to the problem i WAS experiencing.
Background
Bought my sub in NY state and drove it across the continent to Edmonton, Alberta. besides blowing the alternator the trip was problem free. Averaged about 19mph at 75mph the whole trip (empty). Got home and started the paperwork/inspections. my trusty mechanic for my car was given the task of doing the safety inspection. He added gas during the process.
After I got my truck back from him, it started to exhibit what I called "surging" (but after searching through this forum its not what everyone else here calls surging). What was happening was that at a steady speed, the transmission would slip down a gear, then back up-down-up-down-up........took the truck to the stealership thinking they "knew their stuff".
Dealership Diagnosis
After checking the fuel, they discovered a lot of particulate and generally bad gas. They immediately assumed my problem was related to fuel and recommended replacing all injectors,injector pump, glow plugs, drop and drail fuel tank, flush lines, replace filter..........estimate $6600Cdn. I just paid 7k for the truck so i said i'm going to get a second opinion
GCL Diesel Injection Service - Edmonton
On the recommendation of a friend, dropped the truck off at GCL here in town. They had the truck for about 4 days with lots of phone updates. lots of "tried this, but didn't work, still searching for problem". Then i got the "aha" phone call. Trevor there discovered the problem.
The Culprit
Trevor discovered that the engine temperature sensor (i'm a layman, but a different sensor than the one that drives the coolant temp gauge) was constantly outputting -38C. He said after reading in the books, if the engine thinks its cold, it won't let the engine stay in O/D. And so the engine would go into O/D, then drop back to 3rd gear.
He swapped the $30 part with a new one, also replaced the lift pump as it was only 1.5psi output and the truck is running fine now. Total bill $520.
Epilogue
Monday I visit the stealership to stomp my feet and try and get something for free. Not leaving without.
I did a lot of reading on this great website - thanks to the tech experts who so often post their knowledge freely.
Tyler
Edmonton, AB
99 K1500 Suburban 4L80E (i think) no mods but now reading as to my best choices.