Search Results for ‘2003 lb7’

Just finished pulling the top of my engine apart to repair a high pressure fuel leak, put it all back together, everything looked good. Went out today to see if the high pressure side held, primed my fuel filter, which has always lost pressure since I got the truck, and started it up no...

Ok, Hoping someone can shed some light on this topic. Yes, I read the post on parking break fixes and none of that answered the question. I have replaced the parking break shoes, parking break hardware then adjusted,replaced both left/ right cables and the intermediate cable. I have taken...

I have a 2003 extended cab lb7. It has a custom 5in aluminum driveshaft. I discovered the output shaft seal was leaking. I decided to change the seal and the slip yoke. It’s leaking just as bad now with the new parts. No vibration, doesn’t seem to be any unnecessary play anywhere, slip yoke is...

I need help I sprayed some on the rubberized coating shit on my frame near the weel wells, went for a ride come back and there's a good amount of overspray on the panel between the rear bumper and tires so I wiped it off comes right off like thin rubber not stuck to paint or anything. Long story...

I drive an 03 Sierra LB7 and have some general questions as it's my first diesel truck. I've upgraded it in case I need to do any towing (travel trailer, etc). I've made the following upgrades: Switched the stock intercooler to an all aluminum one, shift kit for tranny, S&B intake, 5" turbo-back...

On my 2003 Chevy duramax I wired up my monitor and plugged it into my OBD2 and the hdmi on the back and it turned on when I didn’t even have my key in the ignition and it won’t turn off unless I unplug it does any one have this problem?

I just recently bought my first Duramax a 2003 LB7 with 245K miles, I knowingly bought it with bad injectors as that's one of the weak points and I had a well known diesel shop install Some Bosh reman injectors and fuel lines as well as a fass fuel pump/sump and fuel bowl delete. It hasn't...

I have a 2003 LB7 I bought completely stock from the original owner with 130,000 miles. I put a 6” lift on with 35s and shortly after this I notice issues with the fuel gauge. When I fill it up the needle never gets completely to full. I also run out of fuel and the gauge indicates I have 1/4...

In the process of changing injectors when I noticed 2 of them had metal shavings where the fuel lines attach. One was so clogged it couldn't have been working. Any suggestions what might cause the problem? What would I need to replace.