hello everyone,

i just bought a 2005 gmc 2500hd with the lly 6.6 duramax.. i had a ford with a 7.3 diesel.

since i got the gmc used and so far i am pleased with the power it has.. i've been doing a few maintanance stuff to it like changr the oil, air fliter, fuel filter and the therma stats...

the old therma stats was acting up i think cause they was going from 185 up to 200 and back down.. so i changed them but i don't know if i put thr rear one in right or not cause now when the engine wames uo the temp gauge sits at 200 and doesn't move...i have not been able to get my hands on a repair manual for my truck so if there is anyone who can help me it would be greatly apprieciated..

my fuel level sensor is out also and i was wondering if the is a after market one to be had or should i get one from gmc???