Engine issues or vacuum leak? New Jeeper please help!

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01-24-2021, 10:42 PM

#16

awg

CF Veteran

Join Date: Mar 2016

Posts: 3,540

Likes: 238

Received 660 Likes on 563 Posts

Year: 96

Model: Cherokee (XJ)

Engine: 4.0

is there anything wrong with hooking up a vacuum gauge ?

One of the cheapest and handiest engine diagnostic tools available

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01-25-2021, 12:45 AM

#17

doublechaz

Senior Member

Join Date: Aug 2020

Location: Prescott, AZ

Posts: 614

Likes: 1,049

Received 201 Likes on 156 Posts

Year: 1988

Model: Cherokee (XJ)

Engine: 4.0

I have a general use 4 inch that does both vacuum and pressure. I use it regularly. It would be a simple way to stop guess and get some data on this one.

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01-25-2021, 10:17 AM

#18

1/1200 Cherokee

Junior Member

Join Date: Apr 2020

Location: Portland

Posts: 60

Likes: 5

Received 17 Likes on 13 Posts

Year: 1992

Model: Cherokee (XJ)

Engine: 4.0L

My water pump made a whooshing sound when the bearings inside went bad. Also what’s your tire size? If they are 31s or bigger on 3.55 gearing your not going to get much acceleration especially on the freeway.