Question about Jeep Cars & Trucks
Just replaced my head on my 2000 grandcherokee when I start it revees up 4000rpm
Probly got a vacuum leak some where--inspect job again--may need a compression test to confirm--are bolts torqued rite-can warp a head if not
Posted on Jul 28, 2013
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Posted on Jan 02, 2017
the torque is a 4 step process
1 torque all bolts to 22 ft/lbs
2 torque all bolts to 45 ft/lbs
3 recheck all bolts to 45 ft/lbs
4 torque bolts 1 thru 10 to 110 ft/lbs
bolt 11 to 100 ft/lbs
bolts 12 thru 14 to 110 ft/lbs
bolt #1 is the fourth bolt from the front on the passenger side....#2 is the fourth bolt on the drivers side then you continue in a clockwise order
Posted on Jan 04, 2009
SOURCE: 1999 Grand Am 3400 v6 misfire.
I was asking about the pushrods because I had this problem with one of these engines that had a bent push-rod. I robbed a push-rod out of an older 3100 and it was just a fraction of an inch longer which bottomed out the lifter. I figured it out by removing the valve cover and loosing the rockers when it was running and it smoothed out. I'm guessing you checked for vacuum leaks already. How about injection pulse on the number 6 cylinder when running. Another thing you could check is running compression. You said you checked compression but did you just check cranking compression or did you check running compression too.
Posted on Apr 09, 2010
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