Question about 2002 Chevrolet Tahoe

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I have a 2002 chevrolet tahoe that will not pick up speed no higher than 40 miles per hr. codes P106 are reading when using a snap on 2500 scanner tool.

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My book says manifold absolute pressure sensor circuit, range or performance problem... but my guess is fuel filter, or did you already try that?

Posted on May 16, 2009

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  • Master
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That code is for the MAP sensor, but I suspect that you may have a bad catalytic converter. The code can set if manifold vacuum doesn't change in correspondence with the throttle angle and engine speed. I would try removing the O2 sensor and see if your power improves. It will be noisy but if the truck is faster, then you have a plugged cat and it should be replaced. If the truck does not perform any better with the O2 sensor out, you should try a new MAP sensor.

Posted on May 16, 2009

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Posted on Jan 02, 2017

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1 Answer

If 360 km per hour is equal to 40 miles per hour, please show me how to calculate using formular


360 km/hr is NOT 40 miles/hr.
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Kilometers per hour to Miles per hour

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What synthetic oil should I use in my 2002 Chevy Tahoe


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My 2002 Ford Taurus does not want to pick up speed around 40 miles an hr and sometimes will shake when i get it over 40 rpms will jump also


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Jan 07, 2013 | 2002 Ford Taurus

1 Answer

Hesitation and sputtering


You have a 4.6 single overhead cam engine in your 93 tw as that is what mine has but as you were told it is probably the catalatic converters getting plugged up with that many miles miles on her it wouldnt be surprised and as far as as the how to read diagnostic codes Auto Zone sells a scanner to do that for around 300.00 I wasnt impressed with the scanner so i returned it and got my money back then went on E-Bay and bought a Snap-On 2500 series scanner and bought the cartridge for it and read all the codes it was giving it then proceeded to fix my 93 tc ...problem was not the same as your tho letting you knopw where i bought my scanner so maybe you can too ...FYI.... the ABS brakes have a seperate hook-up that a regular scanner wont read another reason i returned the auto Zone scanner , this older snap-on will read both sets of diagnostic and there is one more item that uses its own diagnostics and that is the A/C controller you will find all infomation on how to obtain any codes to help repair it ....Sorry this is so long but i belive this info will help a lot of people owning lincolns and grand marquies and Crown vics with ATC or EATC..

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I have to replace my right rear wheel seal/bearing on my 2002 Chevy Tahoe and am curious about how much it is/should cost me.


Hello Richard, the bearing and seal kit will run you about $75, i recommend using a Timken bearing over the AC Delco. Two hours labor to install is the norm for most shops @ $85- $95 per hour. Dealer rates will be higher. Estimated repair cost $265.00.
I hope this helps.

Aug 29, 2011 | 2002 Chevrolet Tahoe

1 Answer

What should the fuel pressure be for a 2002 chevy tahoe


Somewhere around 40-50psi depending on whether or not your vacuum is high or low. High vacuum - lower by roughly 9psi. Low vacuum - switches to higher pressure by the same increment.

Oct 03, 2010 | 2002 Chevrolet Tahoe

1 Answer

Wont shift when reach speed of about 40 miles per hour when driving , I can drive all day in third gear.


You should have a code stored for this condition . You will need to get it diagnosed since your going to need a data scanner to see whats going on.

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you need to read it with volvo scanner/but its probably the abs control unit

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