Sign up for FREE! Become a GM-Trucks.com Member Today!
In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience.
By Scott Lamb II
2008 Chevrolet Silverado 1500 LT 5.3 Vortec. 2WD. I've got a head scratcher here. So filling up the other day, I went to start the truck, and acted like it didn't have any fuel to start. Either that or fouled plugs. Took a few tries and started hard, idled rough for about a minute and then was running good. It's been cooler outside as its winter, roughly in the 20s and 30s. But the truck was already at operating temperature. It's happened twice now after I've filled up and no other time does it do it. Few things: Around 3 weeks ago I forgot to replace the gas cap, lost it on the road. Didn't replace it until the first time it started hard. I've recently changed the oil. Along with that I used a lucas oil additive made for variable valve timing. I also used a fuel treatment for carbon deposits. After looking with my telescope camera, it did its job. Now I did get 2 codes. P0171 and P0174. Bank 1 and Bank 2 Too Lean. Definitely running on the lean side. After this last hard start, I had my scanner hooked up reading the live data, Fuel Trim (Lngshft1 and Shrtshft1; Lngshft2 and Shrtshft2) was low. Lngshft1 and ShrtShft Bank 1 showed fuel trim at start up was -10.4% on Shrtshft1 and -25.6% on Lngshft1. Running very lean on bank 1, and bank 2 was also running lean. I did clean the MAF sensor, replaced the air filter. Check for vaccum leak for about an hour and could not find one. Fuel pump is good, runs just fine. Got out the multimeter and everything seems to check out. I'm thinking its possibly the fuel filter, maybe a bad MAF, purge valve, or O2 sensor. I've been researching for a few days and looking over the truck but cant figure it out. Rather than going through the task of replacing everything and hoping it works, I figured I'd see if anyone else and had similar problem and found the solution. It runs great any other time, MAF showing correct numbers, same with Fuel Trim showing normal numbers. It's only when I fill up. Maybe a fuel pressure issue somewhere.
By Sam Hohn
I recently acquired a 1951 Chevrolet 6100 missing its engine and would like to refurbish it. However, Instead of putting in the original engine (Chevrolet 235) I am looking for an engine that came out in the next 10-15 years to put in my truck that will out put 200+ horsepower without being out of touch with the truck. Any advice would be greatly appreciated.
Recently bought a '02 Sierra 1500hd and the seller wasnt sure on the lift size. My only experience is with spring type lifts in jeeps so I'm not sure how to tell the lift size on this truck. Ive attached pictures of what looks like a upper control arm drop bracket as well as the rear suspension. Also im suspecting it may have a body lift as well, the fenders sit 47 inches at the highest point, all around. Also on 35s
By Big Robs
I keep hearing an interior rear cabin rattle noise when hitting bumps or rough roads. Sounds like it is coming from the interior rear cabin wall were the rear mirror is located. Has anyone experienced this issue? The second rattle noise is coming from the driver side seat belt pillar or door. The rattle noise almost sounds like plastic hitting plastic. Any ideas or has anyone experienced this?
Recently Browsing 0 members
No registered users viewing this page.
Most OnlineNewest Member
Who's Online 54 Members, 0 Anonymous, 1,593 Guests (See full list)
- Dylan B9
- AshleyAnnie Johnston
- Sandy Clarke
- Zach Huskisson
- Drew Rice