Truck overheating and i am stumped
Guys I am completely stumped on this one. My silverado has over heating issue. Only at idle with the a/c on. It takes 30-45 min to start getting hot. So stop and go traffic Is not a problem. So when I...
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Starter too close to flywheel
Hello, I just installed a 4.8 in my 99 Silverado with a nv3500. But I’m having a problem with the starter housing hitting the flywheel. And due to the starter being so close, the starter gear is always...
View ArticleOverheating with Coolant Back Pressure
https://www.silveradosierra.com/threads/truck-overheating-and-i-am-stumped.745874/post-7447821 I'm described the issue in the other thread. To be succinct, my Silverado 1500 the overheating after...
View ArticleNew water pump but still leaking
I had a small coolant leak that was landing on my serpentine belt and flinging all over my engine compartment so I changed the water pump, gaskets, thermostat and housing. But this morning I noticed a...
View Article09 4.8 slight miss at idle
Hey Everyone. I'm New to the forum. I'm an ASE Certified Technician and all that crap. This is a question about my own personal truck. I bought the truck about a year ago. She's got some miles on her...
View Article2010 Sierra 4.8 crank no start no codes
Hello everyone, I have a 2010 Sierra 4.8 with this crank no start that has me stumped. My truck will just crank and never start. I have an autel scan tool that allows me to prime each injector to test...
View ArticleClicking Sound
When I crank my truck and let it idle for about 5 minutes there is a clicking sound from around the gas tank, what would that be closed loop or open loop?
View Article2011 Chevy Silverado over heating
My 2011 4x4 1500 Silverado 4.8L seems to be overheating normally the temp. Gauge reads 210, what's very unusual is that this seems to be an intermitted problem that the temp, will be at 210 and reach...
View ArticleReduced engine power
I just bought a 2007. On the message board "reduced engine power" shows up, throttle body was replaced before I bought it. When I plugged in the obd2 scanner code P0068 MAP/MAF Throttle Position...
View ArticleP0300 & ABS Light? (2001 GMC Sierra)
Hello everyone, this is my first post so it may not be written up correctly. I’ve searched through the forums and have yet to find a similar thread. Just recently I bought a 2001 GMC Sierra regular cab...
View ArticleLow idol after bat terminals disconnected for a week
While replacing starter on 2003 Silverado 1500 4.8ltr, I disconnected battery terminals for about a week due to other issues needing repair (I damaged crankshaft sensor wire harness) After the...
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Leaking coolant on head.
Been having an issue with coolant leaking and thought the reservoir was the problem. After smelling burning coolant I looked around and on both heads it has developed a little puddle. Is this a head...
View ArticleInstalling Oil Cooler possible/worth the hassle?
So recently, my radiator has started leaking pretty bad. Need to replace it soon. My radiator only came with two ports from the factory, just for the transmission lines. I also do not have a motor oil...
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Best Upgrade for 4.8 performance!
I have a 2010 4.8L V8 and I'm wondering what I can do to get that quick response feeling in the pedal! I haven't touched anything in the engine and would like a good list of engine upgrades to add that...
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