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Coolent hose routing
Posted: August 19th, 2011, 7:06 pm
by Dave_J
Ok I have tried to find this on a few other sites but found nothing. I got this jeep with all the hoses off and the overflow tank removed. This is a 90 Cherokee. I think I have it plumbed right but it does not seem to flow right. And it overheats at idle.
Anyone have a picture of what hose goes where.
Re: Coolent hose routing
Posted: August 20th, 2011, 9:52 am
by Muad'Dib
Are you talking about for the heater hoses?? The rest should be straight foward.
Try This:

Re: Coolent hose routing
Posted: August 21st, 2011, 1:26 pm
by JEEP DRIVER
You might have the hose's for the heater control valve flowing in the wrong direction, I have a 91 Cherokee and I cross the heater hose direction causing my engine to over heat at idle Also my heater wasn't heating properly:doh: had to take a second look to get it right, I think the 90 Cherokee just has two outlets my 91 has 4 plus a vacuum line ( for the valve of course) .
PS: oh yeah As a reminder make sure to check the "Heater control valve" for cracks I had purchase one a while back taught I had put the hose on wrong again, turn out the "Heater valve" had a crack in the middle of the seam!

... plastic crap I miss the days when parts where made form metal.

Re: Coolent hose routing
Posted: August 22nd, 2011, 10:20 am
by 92tank
just get rid of the valve. mine dont have it.