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Have a leak from the back of the motor that is getting worse. I collected some of it today and it's anti-freeze. I was thinking it was from near the front of the engine but parked it in the driveway and the puddle is near the back. I do have to add coolant; maybe went through a gallon over the last 12/18 months. It also does use oil, maybe a quart over 3000 miles. I thought it was also leaking oil but this coolant did not appear to have any oil with it. It's an 02 with 240K on it and I've had it for about 4 years. I've never really worked on an LS motor so advice would be great.
I have a 2011 Silverado 4.3L. Im slowly leaking oil, appears to be near the timing chain cover. When I noticed it I was below the low line on the dipstick. Have not seen any oil drips on my driveway but if you look around the timing chain cover and oil pan there is always a thin layer of oil. Ive had to add a quart of oil two weeks after topping it off. But there has been zero drips?!?! Can't figure out where it's going... Has anyone else had this issue? (Parked in the same spot on a clean driveway when parking and checking the oil level)
My daily driver is a 2004 silverado 2500hd with 6.0 engine. I've notice oil under the truck so I have began to hunt the issues and fix. So far I have replaced valve cover gaskets, oil pan gasket and oil cooler gasket. On the oil pan job I went right by the book with the sealant on the specified locations and torqued all bolts in sequence. I immediately replaced oil and started it up. I did lift the truck back up to see if all was well. Well, it wasnt. I have a drip off the the starter bolt closest to the block and also a leak seeming to be coming from the last short oil pan bolt nearest the bell housing. It kinda runs down and drips off the bottom of bell housing. I decided maybe i didnt get the mounting surface clean enough for the sealant to work so I completely redone the procedure and actually left it sitting over night before i put oil back in and tried it. Its still leaking same spots. Flywheel and torque converter are dry and it appears the crank sensor does as well. Any ideas?
My 2000 GMC Sierra 1500 (4.8L V-8) has developed an oil leak somewhere above the oil filter (not the filter itself). I cannot see any leak around the valve cover (both gaskets were replaced recently) nor around the head gasket. I have not been able to examine it from below very well yet but I'm wondering if the filter housing is a separate part attached to the block and uses a gasket rather than being machined into the block itself. If not a separate part where the gasket can fail I have no clue where the leak could be coming from. Can someone confirm my theory or suggest where in that area a leak might originate? TIA.
By Thomas H
Pulling a travel trailer in Arizona. Found oil on the front of the trailer. Loosing about four quarts every 300 miles. Had the oil warning bell went off as soon as I pulled off the interstate. Anyone know if there is a common problem like this with the Duramax? I have another 3,000 miles to go. Any advice would be helpful. Thank'sl
2004 GMC 2500 Duramax 4X4. 223,000 miles.
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