1989 C3500 4x4 454 always runs hot

#11

On May 20, 12:25*pm, mle... (AT) key (DOT) net wrote:

Quote:

I've done a lot of work to be sure their are no problems with the Fan
Clutch, Radiator or Thermostat, yet this 454 with throttle body
injection always runs hot when towing. 240-270 *It can get to the red
line and beyond when pulling a steep hill on a hot day. The power is
not good on those days and I don't run with the throttle mashed down.
It runs hot on hot days when not towing also. *I'm considering an oil
cooler and would like to do it the right way if I do. I'm looking for
links, advice, other peoples experiences with their projects.
* I'm my own mechanic and body man not afraid to tackle a major
change
to the engine or body. Though I'd like to keep this truck fairly
stock
on the outside.
* The engine runs very well, though it seems to lack power for a big
block. I will consider an engine overhaul with performance
enhancements if someone can turn me on to the right combination of
ingredients.

Ever check the water pump? I've seen the wrong water pump installed
on
small blocks that caused overheating. Some pumps rotate in the
opposite direction depending on how the belt wraps the pulley. Big
blocks may have different pumps as well.

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1989 C3500 4x4 454 always runs hot

4x4 Chevy/GMC Trucks 4x4 Chevy/GMC Trucks Discussions (alt.autos.4x4.chevy-trucks)

Re: 1989 C3500 4x4 454 always runs hot - 05-22-2009 , 08:07 PM