Had an accident long time ago with my xj Destroyed the vacuum reservoir behind the bumper finally got another one but it been several since the first was destroyed and it is long...
Had an accident long time ago with my xj Destroyed the vacuum reservoir behind the bumper finally got another one but it been several since the first was destroyed and it is long...
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very easy way follow the evap canister vacuum line also it goes to under the powerv supply pat .and check the engine pcv valf line and breaking hose ,and around of the throtle ..because the vacum problem connected with this systeems
jeeps have more than one engine so which one? (some have 3)
vacuum varies by country and engine, (smog AND epA Laws here))
and if in the USA, the vacuum map is under the hood of all usa cars.
open hood see that>? the EPA sticker with spark gaps and vacuum.? map.
it's in the FSM , factory service manual
its at alldata.com, log in and read there.
there are but a few. on OBD2 cars. fewer yet on 4.0L with no egr.
just evap
fuel pressure reg.
map sensor?:
tell what engine you have.
or google Jeep engine size vacuum map
use google image too.
there are like 5 million 4.0L running now.
no lack of data on it,and endless forum posts on jeep forums
post engine
or post photos with ends not connected .
It should be on the underside of the hood, but sometimes they disappear.
Click on the following free direct Link. It has the Belt Diagrams for your 1998 Jeep Grand Cherokee for the unspecified: 4.0L In-Line 6-Cylinder, or the 5.2L V8, or the 5.9L V8 Engines; along with various engine options (AC/No AC, etc.).
Let me know if this helped, or if you have additional information questions. Feel Free to contact me at FixYa.com!
Google; "1998 jeep grand cherokee vacuum hose diagram"... Click on first choice... Choose, top row from left to right, # 4... Then click on diagram in the upper left corner of page; "See full image".
Check your vacuum hose routing to the cruise control servo, it's a hard plastic hose and sometimes breaks. Does your vents work properly? An indication that you have a vacuum leak.
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