Hi everyone, I have a 2012 1500 2wd bighorn with 168k on it. The truck shakes when accelerating and then 4-5 knocks can be heard under the hood on the passenger side. Once I'm up to a certain speed it shakes but not as bad. It stalled on me for the first time a week ago when I put it in reverse, but hasn't done it since.

The mechanic I usually go to says it's the camshaft and lifters. Said he can fix it for 5-6k but said a new engine would be better because I'd get warranty and it guarantees to fix the problem. I'm scheduled to get a 2nd opinion from the dealership.

Anyone experience this or have any idea whats causing theses issues?

Thank you!

 

What engine?

 

The mechanic wants to replace the entire block with a Jasper engine. He said I'd get 100k warranty with this motor and it would be about $4k more instead of going in and fixing the camshaft.

 

Doesn't answer the question.

What engine do you have???

With 168K on it, I can see where the mechanic is coming from...... To do the cam and lifters (assuming you have a hemi), gotta pull the heads. (a quirk that I really don't get why the designers did it that way..... that's just idiotic.) So, fair bit of labor involved. (which is where most of the cost is coming from.) Replacement motor isn't really a bad idea, but, how much are you going to spend there, and is the truck worth sinking that much money into? After all, the rest of the truck ALSO has 168K on it....... It's 10 years old, for the kind of money you are looking to spend here, I would expect you could buy a whole truck. (used, running, with fewer miles on it.....)

 

Thank you for the reply! Youre right, it is a hemi 5.7.

 

The dealer will tell you the same thing, but for LOT'S more money. If the rest of the truck is in good shape and you like it and plan to keep it, I'd go wth the remanufactured engine. A lot of times upgraded bearings, rings or what ever was weak n the original design are improved. Plus, it's a seasoned block. Seasoning takes any stress out of the block by repeated heat and cool cycles. I've known racers back in the day that were offered brand new engines by the sponsors but they wanted engines with at least 50,000 miles. When I ran a salvage yard, one builder would go through our engine pile and look for Pontiac engines with a certain casting number as they were high nickle content.