Brer Mark Hofmann wrote to Brer Roy Witt about Re: Transmission rebuild.:



 RW>> I had to do this several times on the Z28 while in California, as I
 RW>> was getting a O2 sensor code (check engine light). Come to find out
 RW>> that it was the gasoline I was using, so I went to a different brand
 RW>> and the codes stopped appearing as often. They've never returned
 RW>> while here in Texas.

 MH> Most cars have more than (1) O2 sensors these days.  One before the
 MH> cat - and one after the cat.  I would imagine your Camaro is like
 MH> that.  Did you find out which one was throwing the code?

Yes, it has 4, two before the cat and two after. Dual Exhaust, you know.
We found that one of the after cat sensors was the one signaling the
computer to err, but it checked out as good in up close testing.

 RW>> That must be a Chrysler thing. GM computers are wiped clean with a
 RW>> reset, history and codes included.

 MH> My Monte Carlo is the same way.  The software I use shows the tests
 MH> that are to complete based on the type of vehicle.  The final test
 MH> that takes many miles and driving is the "EVAP Test".  The other ones
 MH> happen fairly quickly.  Once that last test completes, then it shows
 MH> "Ready to be tested" and would pass if there are no codes.

 RW>> Yeah, I don't think my Suburban gets that kind of mileage. My
 RW>> Silverado gets around 22 max highway in OD, 15 around town w/4.8L
 RW>> and only using 3rd (1:1) gear.
 RW>>
 RW>> The suburban is pretty good on fuel, but it's a 1989, before OBD 1
 RW>> even.

 MH> Yes, not bad considering how huge they are.  I was looking at both a
 MH> 1997 and a 1999 Suburban.  Both show 12/17mpg, which on the highway
 MH> isn't too bad.  They are just massive vehicles.

Be sure you check which engine the later models have. The 97 still had the
5.7L, while the 99 could have either the 5.7L or the new for 99, 5.3L LS
engine. GM got pretty close to perfection on the 97-98 fuel injection,
then switched to the new design in 99 and full on LS engines after that.
My high school buddy in Illinois bought a 2007 Tahoe and it came with the
smaller size 4.8L LS, the same one that's in my 02 Silverado. He tows a
boat and trailer and was disappointed that it downshifted to 3rd on hills.

 MH> Going to replace the blower motor in the Durango tomorrow morning.
 MH> Just three bolts while laying upside down on my back.  Piece of cake.
 MH> :)

All Girls Garage pointed out that the Toyota Tundras have the same
problem. They blamed the blower motor speed resistor, which is probably
your Durango's problem too.


    Tenga un gran dia!

         R\%/itt



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