2003 Envoy Codes - Page 3 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 General Tech Q&A > General

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  #21  
Old 02-26-2019, 08:30 AM
Hypnagojia Hypnagojia is offline
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2005 GMC Envoy SLT
Summit White 4.2L I6 AWD
Join Date: Jan 2019
Location: Wisconsin
Posts: 21
I feel your pain, mine has gone through just about everything yours has been. Right after I ordered my tires is when my fan clutch went out. $560 for tires then $760 for fan clutch. I was quite sure the clutch was causing all my code problems and if I had done the work myself I'd have saved $500. Not happy at all about that.

I also need to go in for an alignment check. I replaced the CV axles, hub assemblies, and a tie rod last winter. I know your supposed to do alignment after tie rod but I was very careful to measure the old and new placement of the nut. Drove straight down the road, figured I did a good job, however now the wheel bearings are starting the make noise again and it's way too soon for that again.
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  #22  
Old 02-26-2019, 11:46 AM
45Frank 45Frank is offline
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2003 GMC Envoy SLT XL
Carbon Metallic 4.2L I6 4X4
Join Date: Sep 2018
Location: WNC
Posts: 63
Quote:
Originally Posted by Hypnagojia View Post
I feel your pain, mine has gone through just about everything yours has been. Right after I ordered my tires is when my fan clutch went out. $560 for tires then $760 for fan clutch. I was quite sure the clutch was causing all my code problems and if I had done the work myself I'd have saved $500. Not happy at all about that.

I also need to go in for an alignment check. I replaced the CV axles, hub assemblies, and a tie rod last winter. I know your supposed to do alignment after tie rod but I was very careful to measure the old and new placement of the nut. Drove straight down the road, figured I did a good job, however now the wheel bearings are starting the make noise again and it's way too soon for that again.
Stopped by work today and one of the guys there has a mechanic he swears by. We gave a call and I told him story from day one.
He came up with three scenarios since this was the second clutch and third with the original bad one.

Simple would be re-flash the computer, he says the computer may still be sending signal for old part number and he said he could do it but suggested a dealer. He says they have options he doesn't.

Other could be bad circulation causing fan to come on now even when I just slow to under 10-15mph. engine could be getting hot. I had also told him that the heat in the rear ceiling only blows hot when I'm at highway speeds other wise blows ambient temp. He said the circulation problem.

So he says other 2 could either be stat or maybe even water pump.

But the temp needle never moves more then one line.

?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$?$ ?$?$?$?$?$?$
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  #23  
Old 03-01-2019, 06:20 PM
45Frank 45Frank is offline
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2003 GMC Envoy SLT XL
Carbon Metallic 4.2L I6 4X4
Join Date: Sep 2018
Location: WNC
Posts: 63
OK got my ass greased good today and no it wasn't enjoyed!
Finally had to take to a GM dealer and it wasn't good.
I was told that a NON GM clutch only works half the time if the Flash update works, Anyway he told me if it was a Pt# from the local store I bought it from it will never work?
Anyway the clutch was replaced, the relay was replaced because he said the old relay wouldn't work with the new clutch, the computer was re-flashed.
Drove it home about 12 miles and all seems to be good so far. He did say that they do a few a month like this.
Oh the grand total $1,330.00
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  #24  
Old 03-01-2019, 08:33 PM
Hypnagojia Hypnagojia is offline
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2005 GMC Envoy SLT
Summit White 4.2L I6 AWD
Join Date: Jan 2019
Location: Wisconsin
Posts: 21
I hope that's not the case with mine. Shop bought the fan clutch from Napa Auto. Roughly 260 for the clutch and they charged me around 390 for it. I could have bought AC delco for that price on rock auto. Mine sounds like a turbine at first startup and about 30 seconds after driving it stops. I don't know if I need to get reflash or not... Hope everything with yours works out for a while. $1300 ouch! I'm not surprised though with a GM dealer saying only GM parts will do. What was the price breakdown? Parts & Labor?
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  #25  
Old 03-02-2019, 07:53 AM
45Frank 45Frank is offline
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2003 GMC Envoy SLT XL
Carbon Metallic 4.2L I6 4X4
Join Date: Sep 2018
Location: WNC
Posts: 63
Drove home yesterday and all was good, almost. Pickup amazing, no swooshing noise at all even when starting.
This morning same drives great with no lose of power.
Problem is the belt squeals like crazy.

Price breakdown was $587.00 for fan, $65.00 for relay which they swore the new fan wouldn't work with the old relay. $570.00 labor and 85.00 for uncle sam.

I also mentioned the roughness of the engine and was told to drive it for a qhile that it is possible the comp may have to relearn driving habits since it was always under strain with the bad clutch.
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  #26  
Old 03-02-2019, 08:51 AM
45Frank 45Frank is offline
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2003 GMC Envoy SLT XL
Carbon Metallic 4.2L I6 4X4
Join Date: Sep 2018
Location: WNC
Posts: 63
Drove home yesterday and all was good, almost. Pickup amazing, no swooshing noise at all even when starting.
This morning same drives great with no lose of power.
Problem is the belt squeals like crazy.

Price breakdown was $587.00 for fan, $65.00 for relay which they swore the new fan wouldn't work with the old relay. $570.00 labor and 85.00 for uncle sam.

I also mentioned the roughness of the engine and was told to drive it for a qhile that it is possible the comp may have to relearn driving habits since it was always under strain with the bad clutch.
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  #27  
Old 04-14-2019, 08:49 AM
45Frank 45Frank is offline
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2003 GMC Envoy SLT XL
Carbon Metallic 4.2L I6 4X4
Join Date: Sep 2018
Location: WNC
Posts: 63
OK ran great for a few weeks or less. No power at all again and doesn't miss but idles rough!

Two things is it runs good for a few miles on damp cool mornings occasionally.

Is it possible for the coils to be weak?
I disconnected them one at a time and some cylinders there was a Huge difference other you could barely notice although there was a difference.
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  #28  
Old 04-14-2019, 09:45 AM
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TB-Al TB-Al is online now
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2007 Chevy TrailBlazer LS
Graystone Metallic 4.2L I6 2WD
Join Date: Nov 2017
Location: Pleasure Island, Al.
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When you pull the coils the response should be the same on all cylinders. Replace the ones that aren't giving as strong a response. Yes, they can get weak before they fail entirely. They also tend to work better when they are cool before the engine warms us but the fuel doesn't burn as well when cold so there is a trade-off there. Sometimes the idle will be rough when cold but not warn and sometimes it will be better cold than warm.
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  #29  
Old 05-20-2019, 04:15 PM
45Frank 45Frank is offline
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2003 GMC Envoy SLT XL
Carbon Metallic 4.2L I6 4X4
Join Date: Sep 2018
Location: WNC
Posts: 63
OK I'm back.
I rarely use this hunk of trash because it runs worse every day. Driving a 1987 Mazda PU with a 5 speed and no A/C.
Did get a code P0300 boy that tells a lot.
Anyway I know had a reader stopped by and did some testing and it says something about a vacuum test fail.

EVAP excess vacuum fail test 2
Enhanced Evaporative Emission System Monitor #1 (.040' Leak)

Any new ideas?
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  #30  
Old 06-01-2019, 07:38 AM
45Frank 45Frank is offline
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2003 GMC Envoy SLT XL
Carbon Metallic 4.2L I6 4X4
Join Date: Sep 2018
Location: WNC
Posts: 63
OK folks if a dealer can not figure out what the problem is with a product they sell the service charge should be FREE.
This piece of crap is at a local shop now because it barely runs.
They have spent al day on it running every test they can. Comp is good on all 6 cyl. coils are good gas flow pressures are good.
Their final suggesting is the cat converter or the head. They are going with the cat because it is not the original, it half the size of the original one but all test show good except the temp test is off some, intake to out. Should be ready by tue so we will see.
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