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Chevy Tahoe Maintenance and Repair

576 messages,  Last post on Oct 26, 2009 at 5:48 PM

You are in the Chevrolet Suburban & Tahoe Forum. Your Hosts are steve_ & tidester

What is this discussion about? Chevrolet Tahoe, Chevrolet Tahoe Limited/Z71, SUV


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#567 of 576
Re: WHAT'S WRONG WITH MY TRUCK? [tommyr43] by 73shark
Oct 17, 2009 (8:51 am)
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Replying to: tommyr43 (Oct 16, 2009 7:38 pm)

Will make it easier for someone to possibly help if you tell us the vehicle, model, year, engine, etc.
#568 of 576
Re: WHAT'S WRONG WITH MY TRUCK? [73shark] by steve_ HOST
Oct 17, 2009 (9:20 am)
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Replying to: 73shark (Oct 17, 2009 8:51 am)

Plus, posts in ALL CAPS are hard to read so most people skip over those posts.
#569 of 576
sorry by tommyr43
Oct 17, 2009 (11:29 am)
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It's a 1999 Chevy Tahoe 4WD with a 6.5 Turbo Diesel . . .
#570 of 576
Re: sorry [tommyr43] by kiawah
Oct 17, 2009 (2:14 pm)
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Replying to: tommyr43 (Oct 17, 2009 11:29 am)

Sounds like your starter could be bad. Works okay when it is cold, when it heats up it fails.
 
This is assuming of course, that your battery connections are clean without any corrosion, as that adds resistance.
#571 of 576
chocking out and back-fireing when i try to give alot of gas pedal by wh7952
Oct 25, 2009 (5:15 pm)
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Over the last month my 99 5.7 4WD Tahoe has been giving me problems accelerating when I give it a heavy foot. When I hit the gas down it loses acceleration almost like it's being starved of air or gas. When I hit the gas the engines just bogs down, begins to hesitate, and will not accelerate. kinda like when you have a dirty fuel filter
#572 of 576
Re: chocking out and back-fireing when i try to give alot of gas pedal [wh7952] by wh7952
Oct 25, 2009 (5:18 pm)
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Replying to: wh7952 (Oct 25, 2009 5:15 pm)

I have already cleaned the mass air flow sensor, air temp sensor
#573 of 576
Re: chocking out and back-fireing when i try to give alot of gas pedal [wh7952] by 73shark
Oct 25, 2009 (5:53 pm)
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Replying to: wh7952 (Oct 25, 2009 5:18 pm)

Check your fuel pressure. Could be a failing fuel pump.
#574 of 576
Re: chocking out and back-fireing when i try to give alot of gas pedal [73shark] by kiawah
Oct 25, 2009 (6:09 pm)
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Replying to: 73shark (Oct 25, 2009 5:53 pm)

or clogged fuel filter, from a bad load of gas
#575 of 576
Re: chocking out and back-fireing when i try to give alot of gas pedal [73shark] by wh7952
Oct 26, 2009 (4:07 pm)
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Replying to: 73shark (Oct 25, 2009 5:53 pm)

I unplugged my mass air flow sensor and the truck was a new truck, ran scary fast and had so much power like it was a new truck. Is it safe to run the truck with the sensor unplugged untill i get a new one installed?
#576 of 576
Re: chocking out and back-fireing when i try to give alot of gas pedal [wh7952] by 73shark
Oct 26, 2009 (5:48 pm)
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Replying to: wh7952 (Oct 26, 2009 4:07 pm)

I doubt it. It will set a DTC and probably go into a fixed fuel/air map that is rich to prevent engine damage. Probably why you're seeing/feeling increased power but have you checked mpg?

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