Just towed for the first time...My truck SUCKS!!

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03-25-2005, 04:13 PM

#21

TURBHOE

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Quote:

Originally Posted by 1slow01Z71

i put a locker in the front .

sorry off topic

where did you get a locker for that? your talking 1500 right with the 8.25 diff?

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03-25-2005, 08:29 PM

#22

slowec

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Quote:

Originally Posted by GregM

I ran some seafoam through my truck a couple months ago, and it seemed like the truck ran a little better right after I did that. Is there any way to tell if the cats are plugged? I had a tech at the dealership ride around with me not long ago with the truck hooked up to the monitor, and he said everything looked fine. I just get some hesitation around 1400-1700 rpms where the truck seems like its bogging down.

GregM

You need to find a backpressure gauge. you screw it into the precat o2 bungs.Anything over about 3 psi @2000 rpm will start killing performance.A high reading before the cat and a 0 psi reading after the cat is a cat restiction.If before and after readings are high, the muffler is clogged.

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03-25-2005, 09:29 PM

#23

ap2002

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i have never had a problem towing/hauling with mine???

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03-26-2005, 10:28 AM

#24

Sexyblu03

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Quote:

Originally Posted by GoldenVelvet

That seems odd. I tow often with my truck and its only got an itty bitty 4.8. I tow a car and tailer to the dragstrip. About 5000lbs with no problems.

our 4.8s have a lot more low end torque and power than the 5.3. I swear the 4.8 is just a better engine all around. I don't know why because the engines are built exactly the same. Hypertech or Predator can really help both engines down low. oh by the way Fords are

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03-26-2005, 10:32 AM

#25

Sexyblu03

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Quote:

Originally Posted by slowec

the easiest way to check cat performance is to use a pyrometer to check temperature. check the temp just before the cat and just after. it should be 100 degrees higher after the cat than before it. if isn't then the cat is not working properly.