genesag

My vacuum pump on my 03 dually is getting louder by the day. I have 79000 miles on the truck and everything works good (cruise, etc.) Anybody else run into this?
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03 3500 2wd Dually QC Auto

westcoaster

I didn't think the third gen trucks had a vacuum pump. More like a hydraulic pump for both the power steering and power brakes.... Beyond that, I can't help.

Jeff in TD

I would assume he has a jacob exhaust brake? (Comes with a big belt driven vacuum pump).

I think I've seen a thread or two about vacuum pumps failing. You could always put the stock belt back on and see if the noise is gone.

J BODY

Nope, 03 had an electric Vac pump.....and they are noisy.

Hercules130

They had it for the cruise i think.

Jeff in TD

I could be wrong, but my understanding was that the stick shift 03's don't have a vacuum pump as the cruise control is all electronic and the go pedal sits in the idle position when in cruise, but that auto trucks use a vacuum pump and actuator so the automatic can read throttle position for kickdown?

Anyhow, if my truck has a vacuum pump, I haven't found it, but I see that genesag has an auto...

SAVOY1964

Look on passenger side up near the computer you will see the pump there it is black mounted to the wheelwell.

Jeff in TD

I just went and looked, and I don't see anything that looks like a vacuum pump on the passenger side wheelwell...

Can you post a photo?

SAVOY1964

Sorry Jeff but only Automatics have the vac pump it is for transmission lock-up and maybe cruise control i just saw you have the Stick.

SAVOY1964

Here is a photo of the pump its between the battery and the firewall.

Jeff in TD

OK. Like I posted, I didn't think my stick truck had one, but I've been known to be wrong before...

I didn't mean to get this thread off topic: Does anyone know how genesag could get his to run quieter, or what a replacement costs?