A vacuum diagram for the four wheel drive of a 1991 Jeep Cherokee can be found in any Chilton's manual for that year of vehicle. The vacuum system allows the vehicle to switch from two wheel drive to four wheel drive on demand.?æ
Need a diagram for 1997 dodge van drive belt installation
this question should be under dodge automobiles
860buzz.com
yes
It is on the top of the transfer case.
Check for vacuum leaks.
I would start by checking vacuum lines
Check for vacuum leaks,
probably a vacuum system leak. Older dodge trucks had the front transaxle engage by a vacuum line. Make sure your pump is working, and that there are no leaks. Then it should engage
should be under the hood on the top crossmember above radiator or on the underside of the hood.
Go to your local Library and look in the auto service manuals, find what you want and you can get copies for 25 cents each. Here is a link for the 4 wheel drive vacume