Question about GMC C3500
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Posted on Jan 02, 2017
You have to remove the spark plugs cables and remove the four nuts that you see when the cables are removed.
When the four nuts are removed, simply raise the valuve cover. When replacing the gasket, make sure you get the gromets as well. Those sometimes get worn or crack since they are more exposed than the value cover gasket. Make sure that you clean the cover from oil and replace the gasket with no use of silicon.
Posted on Aug 04, 2008
There should either be a little button at the base of the headrest that you push, or a small hole in the rod part, with a hole in it. Push in the hole with a pen, or a small nail to release the headrest.
Posted on Dec 27, 2009
i'm guessing that your car has approx 130k or more miles on it. these engines are cousin of the old 2.8L V-6, and have a tendency that if you don't constantly monitor you coolant level, or the engine is abused, (hot rodded), that it will crack a block, take it from me, after approx 130k i got a cracked outer water jacket, but it ran perfectly fine and i drove it for another 20k, but got tired of having to add water to the radiator everyday, so i purchased a new engine, put another 150k on it, and now have a blown head gasket..i'm not one to try any type of block sealers as most of them contain solids, (sodium silcates or liquid glass), and it"ll clog up your radiator, and possibly your hearter core,..but my car has 297000miles on it, so what the heck, what do i got to lose..so i purchased a bottle of "Blue Devil" $65 ( supposedly doesnt contain any solids), at Kragen autostore, they didnt stock it on the shelf, they had to go into the back room to find it. Well they told me that you have to follow instructions to the letter, and i thought how hard can it be, but you are supposed to shake it before pouring it in which i had over looked and when i took out the thermostat, i didnt have the rubber seal in properly and lost most of this when i saw it leaking out onto the ground, so i shut it off and just reinstalled the stat real quick and started it back up...i let it idle the full 50 minutes like it said and the vapor stopped coming out and the low coolant light stopped coming on..but when it came time to test drive it i only got 10 miles before the low coolant light came on...so i kept losing about a half pint of coolant and had a slight misfire until the plug burnt of the water. So i still had half a bottle left, and did it again, this time with the heater on full blast like the instructions say to do.. and now im not topping off the radiator anymore and the engine oil is finally starting to go down...now i just got to change the oil out before i spin a bearing...because water isn't a good lubricant!
Check your oil cap or dip stick, if it doesnt look milkly, then you probably only have an external leak. the verdict on Blue Devil is still out, only 150 miles so far without having to add water! and i totally screwed up and didnt follow instuctions. i myself wanted to purchae another "crate" engine like i did back in 97 but they dont stock the 2.8L anymore. if you are going to spend big bucks to get this problem repaired and its a high mileage vehilce, i would ask if they carry replacement engines, not a rebuilt, but a brand new long block crate engine...back in 97 it cost me $1500 for the engine and $800 labor. ran good as new! and i squeezed another 13 years out of it...it sure beats new car payments. be careful of shady mechs when you go into repair timming cover coolant leaks because i pulled a little tab off the gasket so i would have proof that they did the work and not try and pour in any type of block sealer and the guy got real upset when i did that, well i didnt want him working on the car so i just took it to a dealer.
Posted on May 03, 2010
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