
I’m going to check it out tomorrow, and he said he has the title in hand. I already know to look for frame rust, AFM issues, and maintenance records. What other things should I inspect before buying it?

I’m going to check it out tomorrow, and he said he has the title in hand. I already know to look for frame rust, AFM issues, and maintenance records. What other things should I inspect before buying it?
Got it for $5,000. In the New Jersey area. It definitely needs some maintenance and probably a $400 interior detail. There’s a clunk when braking and then accelerating, so it likely has some driveline or transmission mount play. It also has a small oil leak, probably from the oil cooler lines. The heated/cooled seats, heated steering wheel, and driver-side auto-folding seat have issues. I also noticed the heated wiper button is very sticky and doesn’t turn on. My main focus, though, is fixing the mechanical problems first before worrying about the older GM luxury features. But pretty much almost all the service records are all from the Cadillac dealership. It’s at 200k miles.
I know I’ve been posting a lot of different GMTs, but this one really caught my attention. At this point, I’m seriously considering it because it’s basically a luxury Suburban. He stated…
“Nice and clean big truck
Fully loaded
Zero issues
Good engine and transmission
Good tires
Inspection good till 2027
Private sale with clean title on hand
No trades “
Been busy whipping it back into shape.
Done so far:
Still needs:
To start off I have a thud/clunk when letting off gas and immediately going to hit the pedal again or taking a turn and hitting gas 9/10 it will thud and in the middle of slowing down whether or not I slow to a stop or use my brakes
So far I have repaired
I planned on replacing these on next job to get rid of the clunk
-slip yoke -u joints -rear transmission seal ( efficient to replace while down there )
Was wondering if any of you have experienced this same issue and what the part failed for you whether it’s what I have listed or if it was something else I have seen that it could also be diff mounts but I’m not 100% I’m mostly googling and making educated guesses on what to have replaced
This is at the shop. It has 200k miles on it. I got it for $5,000 on Facebook Marketplace. The frame is pretty clean. It has the 6.2L with no AFM/DOD. North New Jersey area.
Here is the original post.
I went to my mechanic for a 2nd opinion and my trusted mechanic stated he found another issues that the dealer didn’t lol. Which is the engine mount is bad. He quoted me about $3500 to fix both engine mounts and lower control arms and oil leak.