1999 GMC Sierra 3500 "code" Questions

...its calling for 0,2 to -2. and when its hot it drags to start and its poping and running rough. has code p1345 truck has 236,500 miles on it. would it be the distributer wore out or the timing chain ...

engine light came on and code read po403 egr valve , warrenty covered new part and approx 600km down the road light came on again reading code po678 This code is a cylinder number 8 glow plug failure.

lbz duramax will not start fuel lite on with full tanks, fuel to bleeder with pump, code read glow plugs 2 4 6 8 and p2610 ( had battery dissconnected) cranks fine ecm relay clicks in all lites ...

duramax fuel pressure my truck is black smoking an knocking an giving me a code that says low fuel presser read Do you have an after market programmer installed .what code is it showing .

chevy duramax code p0087 throws a p0087 code when going up hill loaded P0087 GMC - Fuel Rail Pressure Malfunction Pressure Too Low Possible causes - Faulty fuel pump - Blocked fuel filter - Faulty ...

...management system, once you understand this then you will see you don't need a scanner, you can code out if it's a engine problem then read the codes itself with a paper clip. Then once you get ...

wich duramax deisel do I have, a tty, or a ttly? vin code on my 04 sierra in the eighth character is the number 2. its listed as a 6.6L LLY 402ci V8......i hope this helps

Problem with a 2006 GMC 3500 duramax. Under heavy loads the check eng light comes on and code reads low fuel rail pressure. Just had a new pump installed and fuel filter and fuel bypas valve. HELP ...

...when warm,truck empty and under load,in forward sometimes. with rebuilt trans a year ago. have one code for #6injector out balance and vss out of range. checked and cleaned all grounds found and ...

bo100 code short in d circuit squib 2014 gmc 3500 sierra So , what about it ? What would you like to know , what part to change or how to diagnose ? (TEST)