FknMaxum
Newbie
Good afternoon fellas, new here but not to these trucks. I’m looking for input on my 1997 k2500 suburban 7.4l Got it couple years ago from original owner which is a helicopter pilot & sells helicopter parts worldwide. Included that so if you know conditions of my truck. Helicopter pilots are notoriously **** & meticulous about their vehicles. With just over 100k miles on it it’s been running amazing mileage was what it was as I got it to tow my boat and it does not hesitate to haul anything.
Recently it started taking forever to start and when it did start it would idle rough and stumble for a minute then she’d be alright. Now it almost drains th battery cranking over. Changed the plugs oil , filters and battery last weekend. Still cranks Long n finally fires up almost draining the battery. And while driving I smell fuel yet haven’t found any leaks and my mileage seems to get worse. I checked the fuel pump which I found is bad due to 45 psi at first then leak down to 0 in a minute after off.
I plan on changing the fuel pump this weekend and wondering what else need to go. It being Christmas and 3 kids birthdays on and around christmas leaves me on a buget for now eventually ill change everything but as for now im looking for opinions.
Im thinking the lack of pressure is what keeping it from starting and rough idle or if the pump is good but leaking unable to build up pressure,,, still cant seem to find where the smell is coming from but at times its strong as if i spilled gas inside the cab. i have a scanner that is capable of live data and tests of different kinds just not sure what to look for any help would be very usefull. ive been turning wrenches since a kid so i know my way around the truck just not the computer parts. thank you
Recently it started taking forever to start and when it did start it would idle rough and stumble for a minute then she’d be alright. Now it almost drains th battery cranking over. Changed the plugs oil , filters and battery last weekend. Still cranks Long n finally fires up almost draining the battery. And while driving I smell fuel yet haven’t found any leaks and my mileage seems to get worse. I checked the fuel pump which I found is bad due to 45 psi at first then leak down to 0 in a minute after off.
I plan on changing the fuel pump this weekend and wondering what else need to go. It being Christmas and 3 kids birthdays on and around christmas leaves me on a buget for now eventually ill change everything but as for now im looking for opinions.
Im thinking the lack of pressure is what keeping it from starting and rough idle or if the pump is good but leaking unable to build up pressure,,, still cant seem to find where the smell is coming from but at times its strong as if i spilled gas inside the cab. i have a scanner that is capable of live data and tests of different kinds just not sure what to look for any help would be very usefull. ive been turning wrenches since a kid so i know my way around the truck just not the computer parts. thank you