bad mpg
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
i've done most of cruisers tips except i haven't gotten around to the cps one yet.
how do I check the sensors? how does the coolant sensor or iat sensor work in conjunction with the computer to deal with mpgs?
I mean I have the temp sensor in back of the head that shows me accurate coolant temp on my gauge but it doesn't tie into the ecu at all and I have the coolant temp sensor on the radiator that kicks on the electrical fan when it gets hot so I can only assume it's working ok. And I have no idea how to test the IAC.
thanks guys.
how do I check the sensors? how does the coolant sensor or iat sensor work in conjunction with the computer to deal with mpgs?
I mean I have the temp sensor in back of the head that shows me accurate coolant temp on my gauge but it doesn't tie into the ecu at all and I have the coolant temp sensor on the radiator that kicks on the electrical fan when it gets hot so I can only assume it's working ok. And I have no idea how to test the IAC.
thanks guys.
Have you completed 1 through 5? What results did you get when doing 5?
Can you solder and use shrink tubing? If so, do 27 instead of 5.
Intake manifold bolts snug?
Banned
Joined: Oct 2014
Posts: 17
Likes: 9
From: tucson
Year: 1992
Model: Cherokee
Engine: 4.0
Thread Starter
Member
Joined: Nov 2013
Posts: 120
Likes: 0
From: North San Diego County
Year: 1988
Model: Cherokee
Engine: 4.0
cruiser- A long time ago when the car was newer to me and I discovered this site and your tips, I started doing your tips. List of what's done so far:
tips 1, 27, 3, 4, 5, 6, 8, 10, 11, 12, 13, 16, 22.
I had to replace the head gasket right when I got it so I put the manifold bolts on so I never thought of them coming loose but I will check to make sure.
And tire pressure and air filter are good.
tips 1, 27, 3, 4, 5, 6, 8, 10, 11, 12, 13, 16, 22.
I had to replace the head gasket right when I got it so I put the manifold bolts on so I never thought of them coming loose but I will check to make sure.
And tire pressure and air filter are good.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
cruiser- A long time ago when the car was newer to me and I discovered this site and your tips, I started doing your tips. List of what's done so far:
tips 1, 27, 3, 4, 5, 6, 8, 10, 11, 12, 13, 16, 22.
I had to replace the head gasket right when I got it so I put the manifold bolts on so I never thought of them coming loose but I will check to make sure.
And tire pressure and air filter are good.
tips 1, 27, 3, 4, 5, 6, 8, 10, 11, 12, 13, 16, 22.
I had to replace the head gasket right when I got it so I put the manifold bolts on so I never thought of them coming loose but I will check to make sure.
And tire pressure and air filter are good.
The integrity of the line from MAP to Throttle Body is critical.
CF Veteran
Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Hey, go to bed, you old bugger. A man our age shouldn't be up and surfing the 'Net at this hour.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
CF Veteran
Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Thread
Thread Starter
Forum
Replies
Last Post
Blue04
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
8
Sep 12, 2015 10:54 AM
ronwu
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
Sep 8, 2015 11:57 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)