Question about 1997 Chevrolet Tahoe

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Hi, my name is Dylan. I have a 1997 Chevy Tahoe. This problem has been getting worse, and I don't know what is happening to it. Now when I drive it for more than five minutes, it won't take more that 1500 rpms and you can hear it not taking the gas because it stalls, and then works again after I let off the gas and barely push the gas??? What's wrong? Thank you for you time

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  • Chevrolet Master
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Mass air flow sensor the one in the air intake between the air filter and the inlet manifold

Posted on Oct 04, 2010

  • 2 more comments 
  • dylan_nunley Oct 04, 2010

    Thanks, I have another question. We have been having trouble with the catalytic converters, we had one cut off and it worked fine after that, its giving us the same symptoms as before, could it possibly be that also? Because every once and a while the check engine light comes on, I don't know if this catalytic converter is giving up as well and if I unplug the o2 sensors i get the worst gas millage. Could it be clogged up and if so, is there a way to clean it out?

  • Colin Stickland
    Colin Stickland Oct 04, 2010

    their are lots of things that can cause this if you have a cat problem and want to eliminate it then remove the front O2 sensor on each bank and try that ,i find a cat is good for up to 150.000kms and some even longer depending on the oil consumption ,now thier is some aftermarket cat cleaner but it doesnt work one way is to use oyx acy blow torch to burn them out if oiled up but in all honesty these american build vehicles are good in one respect and thats i can read the fault codes unlike europe build vehicles which use encrypted software from 2005/7 .In all honesty i would run a nice focus manual diesel instead of these gas guzzlers if you paid the price of petrol that we pay in europe then you might understand my reason for a diesel .Anyway best of luck with it and if you need anymore advice just answer this posting but remember the time zone difference for an answer .

  • dylan_nunley Oct 05, 2010

    Ok, so is 150.000kms like 150,000 miles? Because I am close to 186,000 miles on this vehicle. I have already saved the replacement parts in my wish list on amazon, so when I finally get the money saved up I can get all of it replaced, and hopefully get it back to a some what new condition.

  • Colin Stickland
    Colin Stickland Oct 05, 2010

    no 150,000 miles is a lot more than 150,000 kms ,if it runs ok after the new sensor and passes the emmisions then leave well alone ,if exhaust a smell of rotten eggs then its finished but if it smells ok and passes emmissions do not touch or play with it

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