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



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

 MH> My daughter's old car had a similar issue with the O2 sensor after
 MH> the cat. In her case, however, the cat was probably not functioning
 MH> as good as it should have.

 MH> To save spending a fortune on a new cat, I bought offsets for the O2
 MH> sensor after the cat.  That allows it to still get a reading, but not
 MH> as much as being directly in the flow.  They are used for people that
 MH> remove their cats, but don't want a check engine code up all the
 MH> time.  :)

The LS1 Camaro guys would use something similar that would allow their
cars to pass California smog checks. They'd replace all O2 sensors with
them, which would satisfy the ECM's need for a certain range of oxygen
content.

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

 MH> In this particular case, it was the 5.7L.  They have both a 97' and
 MH> 99' at the local auction and they are still there.  $1900 for the 97'
 MH> and $2100 for the 99'.  I was tempted on the 99', but the A/C wasn't
 MH> functioning. Everything else checked out.

My next door neighbor just parked his 08 Chevy duramax and bought a daily
driver, an 02 2500HD. It's AC wasn't working, so his dad or FIL came over
and helped him replace and clean the system. The compressor had exploded
internally and filled the system with junk. Not a hard job, just hard to
get to. They removed inner fenders and wheels to get to the compressor.

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

 MH> Yes, it is a very common problem with them.  Last time I went to a
 MH> junk yard just looking for a few items, you could see where the
 MH> Durangos and Dakotas had their resisters, wire harness, and blowers
 MH> stripped already.  I had finally located one way in the back that
 MH> still had the wire harness, which I cut out to remove and installed
 MH> in our Durango.  The old one had melted and fused together really
 MH> bad, enough to short wires.

8^) I had a 150amp Tig welder in my shop that did that to the power lines
and blew the utiliy company's 100 amp fuse. The welders found a
replacement fuse and blew it again when they tripped the breaker. This
happened while we were in AZ on a well needed vacation. When I got back
to the shop, 4 days later, I removed the wiring from the breaker box and
found that the line was melted together and probably touching the
conduit. I pulled some new wires through the conduit and all was well
again, but I wouldn't allow the welders to use that welder on any heavy
jobs again.


         R\%/itt



--- Ya have ta ask yourself: What Would Roy Witt Do?
 * Origin: Lone-Star BBS - San Antonio, Texas - USA  (1:387/22)