Gmc eng 6.6 diesel code U0106 year 2005 - 2005 GMC Sierra 2500HD 4WD

SOURCE: 2005 GMC 3500 PU LOW OIL PRESSURE

You didn't say how many miles were on the truck or if there was any clunking down around the oil pan. If your pressure gauge is wandering, your oil pressure sending unit may be bad. If the sending unit is OK, it is time to drop the oil pan.

You may have to drop the tie rod or sway bar to get it out. Check the oil pick-up screen for blockage. If it is clear, check the oil pump for excess play. Replace if needed. If the screen is blocked, clean it by soaking in solvent, replace the oil pump, drop the rod and main bearing caps and examine the crank bearing surfaces. If they are in good condition, you can buy .001" undersized bearings. Lubricate generously and reassemble. Torque to the correct setting, then put the pan back on. This job can be done by one or two moderately skilled back yard mechanics if supplied with a case of beer.

If the bearing surfaces are scarred, take the crankshaft out and take it to a machine shop. You are going to have to take out the timing chain on the front end and unbolt the torque converter or flywheel from the back end of the crank. This job requires a good bit more skill, so unless you have an expert mechanic on speed dial, take it to a shop.

SOURCE: 2001 gmc 6.6 diesel 2500hd,the problem wont rev

safety[ limp] mode truck wont go over 2000 rmp but it will get u safely off road or to a service station or home ur getting some kind of code thats effecting ur truck --use a different reader urs might not be able to retrieve the problem code but can reset the computer-some auto stores such as auto zone / advanced auto scan for free check shops in ur local area

SOURCE: gmc 2500hd diesel with p0700 and p0708 codes as

check with dealer.these are noted for instrument panel problems and are under warrenty up to 80000 miles.

SOURCE: 2005 GMC 4x4 HD 2500 6.0 eng. rear axel seal

SEAL COULD BE LEAKING CAUSE YOU DIDNT LUBRICATE THE SEAL LIPS WITH PETROLEUM JELLY TO HELP THE THE SEAL LIP SEAL OR YOU DAMAGE THE SEAL WHILE DRIVING IT IN.AXLE FLANGE NUTS TORQUE IS 58 FT LBS THE AXLE HUB NUT TORQUE IS 177 FT LBS.