Ok, so my husband brought out his scope, removed the camshaft position sensor and took a look inside. One day, he jumped the truck it wouldn’t start. He went to leave, put in reverse, and it just died. Ever since, it will crank but won’t turn over. Had error codes P0335 P0335 and then after he changed the sensors he got those two codes along with P0365. He did take the battery to get it tested .. it was fine… 97% He did replace the battery terminals, he replace the camshaft crankshaft position sensors and the solenoid camshaft sensor that’s just below the camshaft position sensor on the passenger side. He checked the relays and fuses, he did a fuel compression test, fine. Did a compression test with a cheap tester and it gave a variety of results but they were, however, in the ballpark of the numbers here .. cylinder 1 @ 153, cylinder 2 @ 145, cylinder 3 @ 25, and cylinder 4 @ 25. He checked the wiring, it seems to be fine. So, he decided to try and look inside where the timing chain is located to see if it’s broken. It was difficult to get the scope to bend and go where he wanted it to, but these scratches can’t be good. We have no idea what this is on, so we’re hoping someone can see these images and know what and why and give us some insight. If it were up to me .. this truck would be taking a fast nose dive off of a very high cliff… ok he just got back inside and got in through the oil fill hole and had his magnet attachment and he pulled on the chain and it seems to be intact. So, again, if anyone can explain these scratches we would be very grateful. Ty ** these are images from the camshaft sensor hole. NOT the ones from today through the oil fill hole. Ty. **
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Pitbullmamabear530
Scope discovery on 2008 2.9l Colorado
1 reading
Ok, so my husband brought out his scope, removed the camshaft position sensor and took a look inside. One day, he jumped the truck it wouldn’t start. He went to leave, put in reverse, and it just died. Ever since, it will crank but won’t turn over. Had error codes P0335 P0335 and then after he changed the sensors he got those two codes along with P0365. He did take the battery to get it tested .. it was fine… 97% He did replace the battery terminals, he replace the camshaft crankshaft position sensors and the solenoid camshaft sensor that’s just below the camshaft position sensor on the passenger side. He checked the relays and fuses, he did a fuel compression test, fine. Did a compression test with a cheap tester and it gave a variety of results but they were, however, in the ballpark of the numbers here .. cylinder 1 @ 153, cylinder 2 @ 145, cylinder 3 @ 25, and cylinder 4 @ 25. He checked the wiring, it seems to be fine. So, he decided to try and look inside where the timing chain is located to see if it’s broken. It was difficult to get the scope to bend and go where he wanted it to, but these scratches can’t be good. We have no idea what this is on, so we’re hoping someone can see these images and know what and why and give us some insight. If it were up to me .. this truck would be taking a fast nose dive off of a very high cliff… ok he just got back inside and got in through the oil fill hole and had his magnet attachment and he pulled on the chain and it seems to be intact. So, again, if anyone can explain these scratches we would be very grateful. Ty ** these are images from the camshaft sensor hole. NOT the ones from today through the oil fill hole. Ty. **
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Well, your looking at the camshaft. Those scratches aren't good, however that's not likely your issue. You have 2 dead cylinders. It could have been caused by many things, but the bottom line is you're likely going to need a new engine.
08 is a good year for al LS Swap candidate. You may have better luck on facebook selling it as a 'roller' for a swap
I’d We had fun back then. lol. I think I’m going to post it on marketplace and see what comes of it. Ty for the suggestion.I can't answer on why it didn't start but I think it has a head gasket blown out between 3 & 4. It might be ok with a new head gasket, but if I ever have an Atlas (4 or 5 cylinder) head off, I will do a valve job including new valve guides. Easy test, with spark plugs out and valve cover off, blow compressed air into which ever cylinder 3 or 4 that has all valves closed. Is air blowing into the other cylinder?
A valve job, head gasket kit, head bolts, and timing set is much cheaper and easier than an engine swap. You don't mention engine mileage but if 175,000 mile or less I would just pull the head and fix it. With the head off, if you find any cylinder damage it will then be time for a different decision.
A valve job, head gasket kit, head bolts, and timing set is much cheaper and easier than an engine swap. You don't mention engine mileage but if 175,000 mile or less I would just pull the head and fix it. With the head off, if you find any cylinder damage it will then be time for a different decision.
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