Quote:
Originally Posted by Anthony P
I didn't want to totally push you away from the Chrysler dual fan setup. I haven't had any problems with the ones I've gotten from the junk yards. I test them in my daily driver intrepid. You could buy 2 or 3 good used ones for the price of a new one.
the majority of failures for the Chrysler/ramcharger dual fans is from....
1. using the '97 and earlier OEM assemblies and the factory "seconds" from ramchargers (until ramchargers went out of business a couple of years ago). the dual fan setup was re-designed for the '98 model year.
2. using the turbo regal factory wiring (single low speed relay, which is undersized) instead of the dual relay kit from Caspers.
3. having both fans only run at high speed all the time. these OEM units were not designed for extended daily use only high speed all the time.
I copied this text directly from the Casper's dual fan relay harness installation instructions for the chrysler/dodge/ramchargers... "The relays are both energized by the factory fan relay in the Buick, reducing the circuit load on the factory relay and permitting full coolant fan control without overload risk. The fans are then both powered at high speed when cooling is commanded via factory low speed coolant fan control through the ECM. This system assures proper load through the relays with proper power distribution."
Okay, so the first thread asked about other setups. there is also the GM F-body dual fans as an equal choice. Get them from either GM or the junk yards. The control strategy here is that both fans operate when either low speed cooling or high speed cooling is requested.
So, the F-body dual fans can fail the same way as the chrysler dual fans - neither setup was design to operate both fans only at high speed all the time. So when we use a product outside of its original design, there exists the potential for premature failure. make the choice that is best for you...spend a few hundred bucks on a new fan or 40 for a good used one. either way the casper's wiring harness is still about $70.
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Anthony, excellent reply, right on the money, & thanks to all the rest for the help, I now have the answers I needed. But it has been said that never give a child too many choice's lol Lou