Coolant bleeding

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10-06-2013, 10:20 AM

Rakkasan_Jeep

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Join Date: Oct 2011

Location: FWB, FL

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Year: 03

Model: Grand Cherokee

Engine: 4.7

Coolant bleeding

The 4.7's are such a pain in the backside to fully bleed the air out of .. GRRRRRRRRRRRR

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10-06-2013, 03:47 PM

pwb

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Year: 1993

Model: Grand Cherokee

Engine: 4.0L I6

I dont know how the 4.7 is, but on my 4.0 i6 it was easy to bleed when there was a bleed hole in the thermostate, without the bleed hole it was a pain to bleed. I dont know if your engine need a thermostate with bleed hole.

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10-06-2013, 08:44 PM

dave1123

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Year: 2000 XJ Sport & WJ Laredo

Model: Grand Cherokee (WJ)

Engine: 4.0L

IF you have a temp sensor in the thermostat housing like the I6, you can remove that to bleed the air quickly. That's how I do it with my 4.0 when I do a flush and fill. I just leave it out until coolant flows out of the fitting, reinstall it, then finish the fill. Works perfect every time.