Question about 2001 Jeep Cherokee
SOURCE: Had a bad egr valve
You have a plugged exhaust, replace the catylictic converter and find out what make it fail and plug, rich fuel mixture is most common cause of overheated burnt cat. The EGR is just a symtom of the plugged exhaust.
Posted on Aug 02, 2008
SOURCE: Valve train tapping?
The 6.0 engine had an issue with piston to bore clearances, from the factory these clearances were excessive. It is reffered to as "piston slap". This condition is known by GM, but most dealers say it's normal. It can be as slight as an annoying tick, to a clearly audible clacking noise. Unfortunately the condition was under played by GM, and there are many folks who haven't been able to get help with their trucks. I own an '03 Silverado w/6.0, and hear this noise everytime I start my truck. I deal with it, because I'm a mechanic and figure I'll be able to fix it if I need to. Research more online about this condition. I've found many websites that relate to this issue (Google: 6.0 piston slap) I hope this helps.
Posted on Nov 19, 2008
sounds like the lifters losed prime! here is a little trick that ive learned add a half off quirt off transmission fluid to the oil to prime the lifter
Posted on Nov 30, 2008
SOURCE: TAPPING IN VALVES
DEPENDS IF YOU HEAR IT WHEN U START THE ENGINE AN THEN GOES AWAY IS NORMAL, THE HEATING OF CAST IRON BLOCK AN ALUMINUM HEADS BUT IF U CONSTANTLY HEAR IT YOU MAY WANT TOCHANGE YOUR OIL, TO A DIFFERENT WEIGHT, OR TRY MOTORCRAFT ENGINE OIL, MY MOTOR LIKES IT....LOL.....I STICK TO MOTORCRAFT PARTS ALL THE TIME COST A LIL MORE BUT DONT GET ANY BAD PARTS SPECIALLY IF THEY ARE ELECTRIC GOOD LUCK......!
Posted on May 28, 2009
Tips for a great answer:
Damaged or porous casting surfaces
Damaged or stripped bolt holes
Inspect the case side cover gasket (54) and case side cover inner gasket (59) for damage. The gaskets are reusable if they are NOT damaged. Clean the case side cover gasket surfaces
Install the 1-2 shift solenoid (315A). Connect the transaxle wiring harness. Install the case side cover. Refer to Control Valve Body Cover Replacement .
Important: It is recommended that transmission adaptive pressure (TAP) information be reset.
Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.
Reset the TAP values. Refer to Transmission Adaptive Functions .
Good luck , this job is a real pain in the ***
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