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Re: 2008 Tahoe Engine Problem (long post)
[Re: jas60hawk]
#2016317
02/04/17 08:19 AM
02/04/17 08:19 AM
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Joined: Dec 2004
Posts: 19,334
.
ford150man
Old Mossy Horns
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Old Mossy Horns
Joined: Dec 2004
Posts: 19,334
.
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Uh oh, you've done it now. You've said a GM product is giving you trouble. Cue the crowd that will claim to have a 2004 Tahoo with 8 million miles, never had an oil change, still has the original tires and spark plugs, pulled a battle ship for the Navy once, only put gas in it every 10,000 miles (because its THAT good) and its stronger than any car on the NASCAR circuit.
If voting made any difference, they wouldn’t let us do it.-Mark Twain
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Re: 2008 Tahoe Engine Problem (long post)
[Re: ford150man]
#2016487
02/04/17 12:10 PM
02/04/17 12:10 PM
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Joined: Apr 2007
Posts: 14,176
Over yonder
extreme heights hunter
Booner
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Booner
Joined: Apr 2007
Posts: 14,176
Over yonder
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Uh oh, you've done it now. You've said a GM product is giving you trouble. Cue the crowd that will claim to have a 2004 Tahoo with 8 million miles, never had an oil change, still has the original tires and spark plugs, pulled a battle ship for the Navy once, only put gas in it every 10,000 miles (because its THAT good) and its stronger than any car on the NASCAR circuit. Think you're confusing them the Tacoma queers
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Re: 2008 Tahoe Engine Problem (long post)
[Re: extreme heights hunter]
#2016567
02/04/17 02:21 PM
02/04/17 02:21 PM
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Joined: Feb 2002
Posts: 44,350
North Alabama
Wiley Coyote
Freak of Nature
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Freak of Nature
Joined: Feb 2002
Posts: 44,350
North Alabama
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Uh oh, you've done it now. You've said a GM product is giving you trouble. Cue the crowd that will claim to have a 2004 Tahoo with 8 million miles, never had an oil change, still has the original tires and spark plugs, pulled a battle ship for the Navy once, only put gas in it every 10,000 miles (because its THAT good) and its stronger than any car on the NASCAR circuit. Think you're confusing them the Tacoma queers But you're still the queer with handlebars for ears.
Get the F out of the BATFE. The F is guaranteed by the US Constitution. Those other letters are not.
NRA Life Member
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Re: 2008 Tahoe Engine Problem (long post)
[Re: Wiley Coyote]
#2016578
02/04/17 02:44 PM
02/04/17 02:44 PM
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Joined: Apr 2007
Posts: 14,176
Over yonder
extreme heights hunter
Booner
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Booner
Joined: Apr 2007
Posts: 14,176
Over yonder
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Uh oh, you've done it now. You've said a GM product is giving you trouble. Cue the crowd that will claim to have a 2004 Tahoo with 8 million miles, never had an oil change, still has the original tires and spark plugs, pulled a battle ship for the Navy once, only put gas in it every 10,000 miles (because its THAT good) and its stronger than any car on the NASCAR circuit. Think you're confusing them the Tacoma queers But you're still the queer with handlebars for ears. And you voted for Obama. TWICE!
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Re: 2008 Tahoe Engine Problem (long post)
[Re: rutwad]
#2016684
02/04/17 05:03 PM
02/04/17 05:03 PM
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Joined: Apr 2014
Posts: 140
Coffee County
jas60hawk
OP
3 point
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OP
3 point
Joined: Apr 2014
Posts: 140
Coffee County
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"rough idle" ??
Very noticeable or just not running like a sewing machine?
AFM (active fuel management) is notorious for giving problems. As someone already mentioned, it usually starts with lifters and possibly a camshaft.
Does it use any oil? It is very noticeable and the service stabilitrack and traction control off messages come on as well. It does use oil, but don't most Tahoe's!
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Re: 2008 Tahoe Engine Problem (long post)
[Re: rutwad]
#2017582
02/05/17 04:04 PM
02/05/17 04:04 PM
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Joined: Apr 2014
Posts: 140
Coffee County
jas60hawk
OP
3 point
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OP
3 point
Joined: Apr 2014
Posts: 140
Coffee County
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Keep us updated. I'm curious as to what it is Will do, I probably won't have a chance to do anything with it this week but hope to next week.
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Re: 2008 Tahoe Engine Problem (long post)
[Re: jas60hawk]
#2018047
02/06/17 06:11 AM
02/06/17 06:11 AM
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Joined: Nov 2006
Posts: 13,401
Mobile Alabama
TChunter
Booner
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Booner
Joined: Nov 2006
Posts: 13,401
Mobile Alabama
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Most good shops have the capability to do what you were needing done as far as scanners. Believe it or not I've had the exact same issues with my old 99 Tahoe and taking the same steps that you have as far as trying to fix it. It still has a hesitation occasionally for no ryme or reason.
On the Eighth day God created flounder.
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Re: 2008 Tahoe Engine Problem (long post)
[Re: dnolen]
#2018053
02/06/17 06:15 AM
02/06/17 06:15 AM
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Joined: Jan 2009
Posts: 4,885
Fayette
hoggin
12 point
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12 point
Joined: Jan 2009
Posts: 4,885
Fayette
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Don't these have a plastic intake? Reason I ask. Uncle spent a ton of money trying to find out what was wrong with his f150. After every thing was replaced it was a crack in the intake causing it go crazy. Chevy v8 usually doesn't have much trouble with this. First thing to do on a Ford or GM 3800 missing for no reason is put a smoke machine on it and check intake and intake gaskets.
Last edited by hoggin; 02/06/17 06:16 AM.
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Re: 2008 Tahoe Engine Problem (long post)
[Re: jas60hawk]
#2018064
02/06/17 06:28 AM
02/06/17 06:28 AM
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Joined: Nov 2006
Posts: 13,401
Mobile Alabama
TChunter
Booner
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Booner
Joined: Nov 2006
Posts: 13,401
Mobile Alabama
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Also on the older vortecs like mine the spider injection is an issue. Is that one similar or or cdpi?
On the Eighth day God created flounder.
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Re: 2008 Tahoe Engine Problem (long post)
[Re: TChunter]
#2019053
02/06/17 05:32 PM
02/06/17 05:32 PM
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Joined: Apr 2014
Posts: 140
Coffee County
jas60hawk
OP
3 point
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OP
3 point
Joined: Apr 2014
Posts: 140
Coffee County
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Also on the older vortecs like mine the spider injection is an issue. Is that one similar or or cdpi? TC, I'm not sure what cdpi is but it does not have a spider injector. It has a rail on either side with the injectors mounted to it and then through the port on the manifold. I have not had a chance to do anything with it and probably won't until next week. I hope to take it in and get it tested to see if I can figure something out.
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