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Showing results for tags '6.0L'.
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I rarely drive my 135000 mile 2004 Chevy 2500 since I retired, usually just to tow my home-built squareback trailer (2250 lbs) on camping trips. Before retirement, it was a hauler for my drag race car (for 5 years), towed my camper (for 9 years, now), and also my daily-driver (for 5 years, then part-time after I bought an HHR panel as my daily). The bed is full of camping gear and emergency-use supplies (about 800-1000 lbs), year-round, so it sits while other cars and trucks get more usage. After sitting for three months this time, I changed the oil, topped up some other fluids, and took a 500 mile trip with my trailer attached. Sometimes, if I started off too hard from a stoplight, the 4l80e felt like it was slipping, but not so much if I feathered it at the start. At first I wondered if it might've been a U-joint getting loose, but a quick test underneath proved it to be OK. Furthermore, when I pulled off into soft mud, it really slipped before it grabbed (two-wheel-drive). Though my 6.0L engine/4.10 rear combo has no trouble pulling the 2250 lb trailer, I started using tow/haul mode on the second half of the trip, whenever I was either braking in traffic in urban areas, or when taking off from a dead stop. No slippage when tow/haul is engaged. I had the solenoids upgraded about 50000 miles ago, when stop & go daily driving in rush hour traffic was causing erratic behavior, and I used Lucas Transmission Fix about 25000 miles back, when I felt a slight slamming into second gear (upon part throttle). In each case, the problems went away. I didn't check my transmission fluid before the trip, I confess, but I did check the tranny pan, rear seals, differential for signs of leaks, and found none. On the trip home, I stopped just around the corner and bought a new grease gun & cartridges (for the driveline, which may need some, though I did the front end 10k miles back), and a 24 oz bottle of Lucas Transmission Fix (if the fluid level is low, I'll just top up...if the level is OK, then I'll drain/siphon 24 oz and replace with Lucas). It worked before, so why not try it again?
- 5 replies
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- 4L80E
- tow/haul mode
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(and 4 more)
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First time posting here, I’ve got a 2008 gmc 2500 6.0l, very very long story short I did a variable valve timing delete , mild summit cam, headers and injectors, I’ve had this thing to the tuner a dozen times and when the truck is running it runs like a bat out of hell but that’s only when it’s not going into reduce engine power randomly, I’ve replaced the wiring that goes to the throttle position sensor , the Throttle position sensor twice, gas pedal. My tuner can’t seem to help and he’s a reputable intelligent guy, if I could figure out how to control the 6l90 transmission I’d do a carb swap on this thing………… the only thing I’ve been able to figure out is when I’m driving down the road and it goes into reduce power I’ll pull over and relieve the fuel pressure by pushing the schrader valve on the fuel rail and it comes out of reduce power every time, I don’t know if that has anything to do with my problem ? Fuel pressure 60psi.
- 2 replies
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- Limp mode
- reduced engine power
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(and 1 more)
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I switched out the blend door actuator under the drivers side (it controls the different modes/vents). The old blend door actuator was making a clicking noise, so I decided to install a new part and when I did clicking noise was gone, but now I couldn’t switch to different vents/modes. When I first started it up the actuator went through all the different vents/mode, but then when it got to defrost it just stayed there. I thought the actuator was bad, so I got another one, but the same thing happened again. What could be the problem?
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I’m really debating on punching out my cat and running a straight pipe through it. My truck puffs out a cloud of white smoke when I dump it and I can tell a loss of power. Has anyone straight piped a 6.0? What are the pros and cons of doing it on a 2006 I’ve always done it to my older pickups but I’m not sure how it will affect this one
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I have an 02 Silverado 1500hd. It’s got the original bucket seats with the full center console. I’d like to swap it for a bench seat. Is this possible? I’ve heard of there being air ducts under the console?
- 1 reply
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- 6.0l
- bench seat swap
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(and 2 more)
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I need to replace the 6.0L engine in my 2000 Silverado; local salvage yards are telling me the donor engine must come from a 99-00 model vehicle. Is this correct? I have found an LQ4 6.0L from a 2003 Express van and was wondering if this would be compatible? Any help or clarification on this topic is appreciated. Thanks
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I've got a 2004 2500 (non-HD) crew cab and i'm doing an engine swap to a 460hp crate so i'm looking to upgrade the exhaust; most likely just a cat back maybe some shorty headers. My problem is trying to find any non-hd systems, anybody have any experience to know if they're truly different or if they're interchangeable? I'd prefer a single out if possible. here's the engine going in: https://www.high-performance-engines.com/chevy-lq4-6-0l-base-engine-460hp-crate-engine-p/hp93.htm
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Having fuel issues. Replaced everything internal on motor to make a stroker. The intake is original. Before fuel pump and FPR change fuel pressure was 42psi now its 49psi after fuel pump and FPR. When it runs for a min it won’t start back up for at least 30min.