Hard starting Vacuum Leak?
01-18-2009, 12:31 AM
#1
Junior Member
Thread Starter
Join Date: Jan 2009
Posts: 68
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: Inline six
Hard starting Vacuum Leak?
1989 4.0 dies after start up. About 10 seconds. When I disconnect the Vacuum line from the MAP sensor it starts hard but will run. If I reconnect It dies immediately. Replaced fuel filter, MAP sensor, plugs, dist and rotor, some vacuum lines and the air cleaner. The plugs looked black like too much fuel. I do not believe it is the fuel pump or rail because when it is not connected to the Map sensor it will run and drive. But very hard to start.
Thread
Thread Starter
Forum
Replies
Last Post
Blackcherokee290
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
27
07-26-2022 07:52 PM
Brill
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
27
02-06-2020 12:41 AM
95cherokee89
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
59
10-16-2015 03:17 AM
Cane
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
40
08-26-2015 12:08 AM
CCKen
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
08-20-2015 08:07 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)