My small life lesson, having others work on your vehicle

QPDO

New member
Oct 21, 2011
10
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Calgary Alberta Canada
A while back my 2003 Chevrolet Silverado Duramax blew an injector and was dumping diesel into my oil.

Coles notes:
-Got a local forum member to do work on my vehicle paid cash
-His mistake ends up costing me more than 1500 dollars and countless hours of labour
- forum member avoids responsibility and doesnt refund even a portion of my money.

I decided to do some of the work myself to save on an estimated 7000 dollar injector replacement cost. I tore into the truck to the point where i had 6 of the 8 injectors out. The number 4 and 8 cylinder injectors being stuck in heads and I was unable to remove them myself because I did not own the specific injector removal tool made for this truck.

Coming back on the local forum on I received a private message from a member there saying he was a GM tech and did side job mechanical services for cash. I called him and although it was short notice he agreed to come work on the truck and install the injectors and valve covers as I was worried about leaks and proper installation as I had never gone this far into a repair before. He installed the injectors and valve covers without issue and was paid and went on his way..... Or so I thought. After putting the rest of the truck back together and bringing it away to get an oilchange as I was not in the mood to do it myself, around 100 kms later I was getting all the same signs that something was not right. Low oil pressure warnings, oil level way past the full mark, and white smoke on startup, and white smoke pouring from the breathing tube and oil filler cap when removed while the engine was running.

Naturally I was more then frustrated. The next day I had the truck towed to a shop where they said I had lost compression in cylinder 4*(Take note). This is where I get mad because I had brought the truck to my uncles shop several weeks before to check out the low oil pressure warning i was getting and he diagnosed it as diesel in the crankcase thinning out the oil, but had checked out the compression and everything was fine. Talking to the mechanic at the shop, he said he was willing to bet that I had broke the piston rings or washed out the cylinder walls as it didn't seem to him like the valves were the issue. No compression left in cylinder 4. None.

Fantastic, I get the truck towed back to my house and go buy a cheap vehicle off a friend as I need to get to work that is out of town and will be gone for the next several weeks. After finally getting back from work after a month of being away I start a massive teardown of the truck. Pulled the engine and ripped it apart to where the block, crank, oilpan and pistons are the only thing still assembled. While taking the injectors out of the head I noticed the number 4 injector hold-down was extremely loose, and was obviously either missed or not torqued down anywhere near spec by the forum member paid to do the work. The O-ring around the injector was shredded and in pieces. Not thinking anything of it I brought the block away to a engine rebuilder shop where i talked to the owner. He looked at my block and said that there is usually more obvious indications that the rings had broke as my cylinder walls were PERFECT. Literally. No scouring or discoloring to indicate heat distortion...NOTHING. He told me to bring him the heads to check the valves or to check for cracks, and again found nothing. However, while talking about options he noticed a large amount of carbon buildup on top of one of the injector sleeves, and after hearing the details of the past month he is willing to bet that with the blown O-ring, amount of carbon buildup on the injector sleeve and injector where there should be none, that my compression was blowing past my loose injector and into my valve covers.

At this point I am in state of total disbelief/controlled rage that i packed up heads, grabbed my block and left. I take 2 days to cool down before I give the forum member that did the work on my truck a call. To say the least I was less then impressed, HOWEVER I was respectful in talking to him and asked for at least a portion of my money back as I consider this absolutely less then satisfactory work. He said he would like to come take a look at the engine however was not in town. Through several attempts to get him over to look at the engine and him not showing up with excuses (true or not, i have no idea) I finally give him a call saying I cannot wait any longer as I need my truck back on the road and he is obviously trying to avoid me, I give up on trying to get some money back and say goodbye.

As some of you may or may not know, the headgaskets and headbolts for this truck (and i'm sure other diesels as well) are all one-time-use as the head gasket is layered metal and the head bolts torqued down to almost their breaking point. New head gaskets, head bolts, and all the other one-time-use gaskets ran just under 800 dollars.

In the end the total cost of this little *mistake* have cost me an insane amount of money. And countless hours of my few days off per month.

The car that I bought to commute was 3800 dollars
The headgaskets, headbolts and other gaskets 780 dollars
and several other items that wouldnt need to have been bought if the injector was tightened down properly.

Bringing the grand total to somewhere around 5000 dollars.
1500 dollars of my own hard earned money because of someone's *mistake* that i will not see. I will be selling the car once the truck is running. I can't even imagine what the cost would have been if I had gotten a mechanic shop to do the work.

Point in my story being that if you have to get work done on your vehicle, make sure it is either done by a shop that will back up their work. Or as I have learned, if you are competent enough do the work yourself.

Had I paused after taking the loose injector out and given it some thought I would have been able to save some money. However, having never tackling a project this involved and with my time constraints and information given to me by the other shop pulling the motor was the most reasonable option. But that is not the point.
 

jraymer

<--Tree Hugger
Oct 31, 2008
1,421
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Las Vegas, NV
Too bad you didn't sign up on here right when your problems started, someone here could have helped steer you in a better direction on doing the process yourself.
 

blk smoke lb7

<-----Lots of green $
Nov 8, 2010
5,694
0
36
57
belvidere,ill
Too bad you didn't sign up on here right when your problems started, someone here could have helped steer you in a better direction on doing the process yourself.
X2 Sorry to hear that a small over sight turned out to be a major cost and for the record if a shop did this and you took it back no matter what the problem was they would have most likely blamed it on something else and charged you anyways
 

QPDO

New member
Oct 21, 2011
10
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0
Calgary Alberta Canada
Thanks, although i recently signed up, i actually used the how to remove the lb7 forum on here to guide me through the process, and have visited quite frequently.

And i agree with the shop screwing me over too, which is why i decided to do the work mostly myself. I got the injectors for relatively cheap and decided to learn a little while making the most out of replacing my injectors. At least I can say I had allot of fun and gained a TON of experience and confidence with this whole ordeal.

Located in Calgary, Alberta
 

bullfrogjohnson

Big Girl!
Nov 20, 2006
4,167
1
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39
Locust, NC
Is this GM tech a member on this board?

You really have to be careful with people now a days. If you are mad enough about it you can find out what dealer he works at and go pay his service manager a visit.
 

QPDO

New member
Oct 21, 2011
10
0
0
Calgary Alberta Canada
I know where he works, where he lives within a 500m radius, if i wanted revenge i most definitely could get it. Id rather take it in stride, say i had fun messing around with my motor and had fun rebuilding it and move on. I called him out on the local forum where he frequents and if he tries to do anything to me.... well... i wont get into that.

I have no idea if he is a member here.
 

Colt

New member
Jul 23, 2010
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Search on here how to change to LBZ heads and injectors so you can junk that LB7 crap. A guy on here sells the whole setup, bolt on and it does cost but look at how you get ripped off so bad keeping the old junk. If it's a good truck you want to keep this option is worth the time to look into.
 

blk smoke lb7

<-----Lots of green $
Nov 8, 2010
5,694
0
36
57
belvidere,ill
Search on here how to change to LBZ heads and injectors so you can junk that LB7 crap. A guy on here sells the whole setup, bolt on and it does cost but look at how you get ripped off so bad keeping the old junk. If it's a good truck you want to keep this option is worth the time to look into.
Lb7s arent junk i happen to like mine trent seams to move out pretty well forbiden engenring is useing lb7 so i guess they arent that bad
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,610
1,866
113
Mid Michigan
LB7s arent bad. Some mechanics, on the other hand, are...

Sorry to hear about your troubles. Hope you get everything back together and running good again.
 

Dan@PPE

Diesel Enthusiast
Aug 8, 2006
2,570
0
36
So Cal.
Welcome to the site!

Was the mechanic notified of the low compression or running issue PRIOR to you tearing the engine down?
 
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JD4440

<< Lo-Carb Monster
Feb 27, 2009
1,776
1
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Orlinda, TN
LB7s arent bad. Some mechanics, on the other hand, are...

Sorry to hear about your troubles. Hope you get everything back together and running good again.

Agreed, and Welcome. Hopefully we can help you prevent these types of difficulties in the future.
 

QPDO

New member
Oct 21, 2011
10
0
0
Calgary Alberta Canada
Welcome to the site!

Was the mechanic notified of the low compression or running issue PRIOR to you tearing the engine down?

I tried to text him and told him it wasnt running, but as he was on holidays i dont know if he got it. He did mention he was taking his phone and to call if i had any troubles, but after his non response from text, and the shop telling me there was no compression i assumed it was a different issue.

I never asked him to cover all my expenses, only a portion of the money i paid him.
I woulda been happy to hear him say "sorry i ****ed up, heres 100 bucks back" even that small amount i woulda been happy with. But nothing, not even the slightest amount of condolence/remorse
 

Dan@PPE

Diesel Enthusiast
Aug 8, 2006
2,570
0
36
So Cal.
I'm very sorry you are having to deal with this (been there done that), engine issues suck....

Please don’t take this the wrong way (just trying to head my head around the whole situation). So you never actually called him? Only ONE text in a little over a month after having the issue?
 

QPDO

New member
Oct 21, 2011
10
0
0
Calgary Alberta Canada
I had send out several texts as he was on holidays, tried calling but he never picked up. After the shop said no compression I got it towed home where it sat for a month while I was away at work the entire time and when i got back I tore it apart.
 

Jackroderick

New member
Sep 22, 2010
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I had send out several texts as he was on holidays, tried calling but he never picked up. After the shop said no compression I got it towed home where it sat for a month while I was away at work the entire time and when i got back I tore it apart.

I'm not an expert on these engines, but isn't the compression test performed by removing the injector and screwing in the compression gauge?
 

bullfrogjohnson

Big Girl!
Nov 20, 2006
4,167
1
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39
Locust, NC
Well if you run into anymore issues and you are looking for a compitent duramax shop. Contact Teddy at MPL Motorsports. He is in Alberta and a vendor on this site.