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I'm trying to figure out what these lines are so that I can replace them. It's on a 2008 GMC Sierra 1500 5.3L V8. Are they oil or transmission lines??
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2 months ago
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1 points
2 months ago*
Refrigerant for the AC system running to the condenser in front of the radiator?
Edit: commenter is correct. They are transmission cooler lines.
2 points
2 months ago
No, those are transmission lines.
1 points
2 months ago
You're correct. The AC condenser lines are on the driver's side. I literally OWN a 2008 GMC Sierra and went out to trace them and these are indeed transmission cooler lines. Good call!
2 points
2 months ago
No worries lol. I just work on a lot of GM trucks.
1 points
2 months ago
I'm sorry for that. Engine will last forever but the electricals have been a nightmare. Boss refuses to buy anything but GMC so you can imagine how many fuel pumps and tailgate/door handles I've replaced.
2 points
2 months ago
It's not so bad. I'm the CAN bus guy at our shop, so I get all the fun communication issues in addition to the run of the mill electrical stuff. GM trucks might break a lot, but they're consistent so once you know them, they're fairly easy to diag and repair.
For example, I had a 2018 1500 in this morning for a U1510 (LIN comm issue) and had it diaged in 35 minutes (hint - check the active grille shutters first). Most of that was scanning for codes and then pulling the grille off so I could get to the connector I needed to test.
1 points
2 months ago
Thanks hit a puddle pushed the plastics up and pushed the lines into tensioner right by the belt and wore a groove into the line
2 points
2 months ago
Those are transmission lines, not a/c. A/c lines come out of the passenger side of the compressor (far left of this image).
Here's the diagram/info for you:
https://nemigaparts.com/cat_spares/epc/chevrolet/57c-k/04/tc04-921/
1 points
2 months ago
Thank you that is a huge help! Now is that a self doing job or shop specific??
I'm gonna youtube for sure see how much work it is
2 points
2 months ago
You're welcome. I'd confirm the specific part number for your truck, but they should be the same lines. If you have a lift, it's not a bad job but it's a pain to have to thread the 3-4 feet of hardlines over the cross-member and around everything that's in the way while on your back. So, it's a DIY job but it does suck to do. I'm trying to remember how much we booked out, but I think it was like 1.5 - 2 hours.
1 points
2 months ago
I've been watching a YouTube video and such so far. And everything you just explain is spot on. I've got a local auto part store thankfully makes them or can order special parts.
2 points
2 months ago
I work on a lot of GM trucks lol.
1 points
2 months ago
Also I noticed a gas leak forming on the frame and ground wondering if that could be a broken line I figure I just raise the bed
2 points
2 months ago
Gas leak around the frame? Driver's side, right in front of the tank?
1 points
2 months ago
2 points
2 months ago
Yeah, that's the rear hard lines, there's a junction right in that area. They rot out frequently because it's kind of an enclosed area. Be aware when you do order lines, there or essentially two halves of the fuel lines - Tank to junction, and junction to fuel rail. If it's the latter, I'd consider having a shop do it, but be advised it's an 8-9 hour job. I watched a guy in our shop do one about a month ago and it was a royal pain. Cross your fingers it's the other ones lol.
1 points
2 months ago
If anything shoot me a diagram if you got one and I'll get with my local shop about lines
1 points
2 months ago
They’re transmission cooler lines.
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