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Pusher Fan

Wxman

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Wxman Enthusiast

Wxman

Posted
Posted

Anyone had successful experience installing an auxiliary pusher fan? Doesn't look like enough room for any I have seen so far. I live in Tucson and have a 2003 5.3L EXT. Continually runs in the 220-225 range when the temps are at 100 or so during city traffic. Cooler temps or highway running the temp will stay at 195. Also, the AC is almost non-existent until traveling minimum of 35 or 40 mph, then it is very cold. A two minute stoplight in 105 degree heat and you can really notice the lack of cooling.

 

It has a new fan clutch (had a check engine light) and has also had the TSB reprogram of the PCM to increase fan utilization. (Now it runs in the 220--225 range instead of the 230-235 range.) I am told "they all run like that". Well, maybe so, but my other vehicles don't and I don't like seeing the temp fluctuate like that. AC would be nice too. Otherwise truck is great.

 

Any experiences appreciated, or am I just being too picky?

 

Wxman

Hotwire Enthusiast

Hotwire

Posted
Posted

pusher fans are the most inefficient type of fan to go with, sometimes the cheap ones even act as a restriction.

 

sounds like what you need to do is pull the clutch driven fan and get a set of electric puller fans in there to help out. also, w/ the a/c getting warm at idle, sounds like either your pump is messed up or you are low on freon, easiest thing would be to bring it to a a/c shop and ask to check the freon level. If it has the same type of compressor my s-10 did they are a clam shell design and are notorious for leaking at the middle seal. good luck.

Markeaux Enthusiast

Markeaux

Posted
Posted

Since new my 01 Hoe also blows warmer AC at idle ... so does a number of other friends trucks that do not have the later oem electric fans. I pretty much live with it, maybe rev it up some at idle. I had a number of small on-going irritating problems due to modding my 98 Z28 so am pretty much burnt out on doing an electric fan mod (aftermarket is bound to have reliability, longevity or some other irritating problems) but if I lived in AZ I'd probably go ahead and try it.

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