vac pump question

[NJGearhead666]

what is the difference between the vac pump for a 94 idi and the 94 powerstroke? I'm having trouble believing the parts dealer cause he says there is none.

 

[icanfixall]

I believe the dealer is correct... This time...

 

[snicklas]

NJGearhead,

On the 6.9 and 7.3L IDI engines, there is a belt driven vacuum pump to run the brakes, AC blend doors, etc. This is mounted on the front of the engine just like an alternator, power steering pump....

On the 7.3L and 6.0L PSD engines there is an electric vacuum pump located on the passenger fender behind the batteries.

Hope this helps

 

[Sycostang67]

O'reilly shows different part numbers for each truck.

 

[NJGearhead666]

yea but i just checked advanced autos site and it has the same part number guess ill find out if it fits or not tomorrow

 

[cm1hedge]

On the 7.3L and 6.0L PSD engines there is an electric vacuum pump located on the passenger fender behind the batteries.

Not quite. This is true for 99 and newer. 94 to 97 PSD had a belt driven pump, too.

 

[Exekiel69]

I had a VP from a V belt before and the shaft was not the same size as the one on a serpentine belt I do believe ford used the same pump on the early psd as the did on late IDI's.

 

[NJGearhead666]

I just saw in the marketplace someone is parting out a F-450 and wants 300 bucks for the hydoboost its got me thinking.........

 

[icanfixall]

The $300.00 for the hydroboost better include the master cylinder, power steering pump, all the hoses, the booster and.... The brake peddle. Otherwise its way too much asking that much...

 

[NJGearhead666]

yea includes all that i was thinking about offering 250 bucks

 

[snicklas]

Not quite. This is true for 99 and newer. 94 to 97 PSD had a belt driven pump, too.

cm1hedge,

Thanks for correcting me. I have only driven an OBS PSD. I have a 6.0L Ex and it has the electric pump. I have more experience with the SuperDuty body trucks.

 

[typ4]

Shaft sizes can vary on the pumps also the bolt bosses are threaded on some and drilled on others. AND the vacuum port can point in the wrong direction.