I posted earlier to Gary about my blazer blowing its tranny. Now Im looking
for your advice with us towing with our 03' 1500 silverado Z71 5.8 V8.
We had a brake controller installed on our Blazer but from what I understand
you cannot use them on a Silverado (confused) Do I not need one. It came
with the towing package from the factory, I don't want to sound stupid,
but does this mean that it already has a good tranny cooler on it.
I just want to make sure we are treating the Silverado properly and want to
insure a long life with this truck.
If you can think of anything else I should know about owning a 1500
silverado and also towing with it. Iwould appreciate it.
Are you sure the engine is not a 5.3, instead of a 5.8? There is also a
The brake controller and tranny cooler are unrelated. The towing package
may include a transmission cooler. The term "package" really means nothing
to me, so I would just try to find out the components that are in it. A
"package" may, often times, include a nice sticker.
To my knowledge, there is no reason to not have a brake controller on this
truck. I doubt it is equipped with anything more than a factory harness.
Brakes on a half ton truck leave much to be desired in an emergency
The controller is your choice. I recommend the Tekonsha Prodigy, as I use
mine often and it's very reliable and easy to use. If I was you, I'd sure
challenge whoever said to not put a brake controller on if you're towing.
Anyone who says this has never gotten to the bottom of a steep hill with
12,000 lbs. of gear and had someone pull out in front of them, just to turn
left in another 50 yards to go into their driveway.
My advice is and has been...........take it to an independent (not AAMCO or
the like) transmission shop that works on a lot of trucks, and ask them to
install the largest cooler (or two smaller ones if space is a problem) that
will fit behind the grille.
Bypass the cooler in the radiator completely.
Chenge fluid often (8-10 k) and it should be good for a lot of miles.
You WILL reach a point at about 40-60k where it starts setting a 'P-1870'
code (Transmission Component Slipping), at that point the valve body will
need to have the Torque Converter Regulator valve bore reamed and a
valve-and-sleeve installed to overcome wear in the valve body.
Hope this helps, and if you have any other questions, the e-mail address IS
(and Tekonsha makes the best brake controllers, IMHO)
No problem installing a brake controller in the 2003, if yours has the tow
package then all you need is the plug in harness from GM and the controller.
The harness used to come with the trucks but the 2003s don't it is now
"optional" however the ones from the earlier trucks fit just fine BUT you
need to swap 2 wires for proper operation, on the older harness they are
light blue and brown, one is the brake apply voltage (light blue) and the
other is controller illumination (brown) on the 2003 these are reversed from
the earlier trucks (why? who knows) but the remainder of the harness is the
As for the tranny cooler if you have the tow package you do have an
external cooler BUT it is not real large.
"Lisa VandeGiessen" < firstname.lastname@example.org> wrote in message
Just wanted to thank you all for your feedback. I forwarded them to my
husband who handles all the car stuff. BTW is is a 5.3 V8 I was having
a blond moment ;-)
Thanks again for your valuable insight. Now Im going back to Lurkdom!!!
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