biglover1893@hotmail.com
Newbie
Last Activity: Apr 28, 2012 12:16 AM
- My Cherokee
- Year
- 1998
- Model
- Cherokee
- Engine
- 4.0 ho
- Transmission
- 5speed
- Transfer Case
- np242
- Front Axle
- dana 35
- Rear Axle
- 8.25 ford axle
- Tires
- 33's
- Lift Specifications
- 6 inch in the rear 5 in the front
- Misc Accessories
- cold air intake, tinted windows, slip yoke elimenator kit, custum drive line, quick disconects.
- General
- Location
- battle ground washington
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goodmorning
Knocking sound from engine
I have Grand cherokee 6 Cylinder 4.0 L model 2000. I was thinking that my jeep has carbon on valves. while the engine was running and hot I add a lot of Diesel in the air intake hoping that diesel will clean carbon and will goout from exhaust as wet smoke , suddenly the engine start giving loud knocking sound. Now I opened the Head and replaced Lifters , I have observed Pistons from the top but looks OK.but sound is still there. I noticed if I will remove the the rocker push rod for Piston#2 then sound disappear , I have try to exchange Rockers and Push rods,grind valves but same situation. Any advice to dignose the problem will be appreciated
Thanks - Zahid
- Year
- 1998
- Model
- Cherokee
- Engine
- 4.0 ho
- Transmission
- 5speed
- Transfer Case
- np242
- Front Axle
- dana 35
- Rear Axle
- 8.25 ford axle
- Tires
- 33's
- Lift Specifications
- 6 inch in the rear 5 in the front
- Misc Accessories
- cold air intake, tinted windows, slip yoke elimenator kit, custum drive line, quick disconects.
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