'89 4x4 blazer - installing new oil lines, any tips?

[Ron]

My '89 Blazer 4x4 has a small oil leak in the oil lines that run from the remote oil filter location (driver's side inner fender) down along the driver's side of the engine block. Anyone have any experience in changing these oil lines? I was at the junk yard and was looking at how the lines are run and it doesn't seem to be very difficult, but the trucks at the junkyard have a lot of missing parts that might be in the way on my truck. I think I have to remove the skidplate from the front of the truck as well. Any tips would be much appreciated.

[steve]

My '89 Blazer 4x4 has a small oil leak in the oil lines that run from the remote oil filter location (driver's side inner fender) down along the driver's side of the engine block. Anyone have any experience in changing these oil lines? I was at the junk yard and was looking at how the lines are run and it doesn't seem to be very difficult, but the trucks at the junkyard have a lot of missing parts that might be in the way on my truck. I think I have to remove the skidplate from the front of the truck as well. Any tips would be much appreciated.
It looks a lot easier than it actually is. I thought the same thing you did so I attempted it and fail miserably. I ended up having to send it to a shop to get them changed, because I ran out of time. And if I remember corectly, it took them 8 hours to get them changed. They were only given about 2 hours to do it by the manual. I think they had to drop the front diff to get it out. So pretty much it is no picnic and if you plan on doing it your self give your self plenty of time.

[Hicks84s10]

I know you have to get it past thed motor ont wihich most guys take off, and I'm trying to rememberhow my old teacher told me how to snake it past, this was also on a 2nd, but I would think it would still be about the same.

[Telemarshallman]

I tried to pull the lines on my 94' 4x4 and ran into the front diff problem. I was at work so I pulled every tool I could think of to get around it and unbolt the lower fitting, but I couldn't get a wrench on it. I tried using several universals and swivel sockets, but nothing worked.

[daryl]

Its a pain I would pay a shop for this job it cost me $300 total.

[Ron]

I replaced the oil cooler lines on my 2000 S-10 in a matter of about 30-45 minutes so I was hoping that the blazer lines would be just as easy. Now I have to think about what I should do. I don't want to pay a lot to have someone do it and I don't want to drop the transfer case just to get the lines past it. The good thing is the oil leak is very minor so I have a little time to decide what to do.

Thanks for the help everyone.

[Ron]

Well, I decided to crawl under my blazer and take a closer look at the oil lines. I removed the front skidplate to get a better view. The closer inspection tells me this is not something I want to attempt. There is no place at all to even get a wrench in there. The transfer case is in the way. I think i'm going to take it to a shop (did I just say that,lol) and see how much they will do it for. It will have to wait until after the holidays.

[alexlloyd]

They come out easy with the engine out. There is a clamp behind the power steering pump and two on the original filter location. I don't recall any others on the engine. Snaking it out does take some work.

[Ron]

Sorry to dig up my old thread but I didn't want to start a whole new one.


I ordered a new set of oil filter lines for my blazer and they came with what looks like a washer with rubber O-rings on it. Which end of the oil lines does the washer go on? Thanks

[67Truckin]

I'm trying to remember from my 1999 but I think the rubber washers go at the back on the aluminum block when you bolt it up by the oil filter area. The radiator ends have a plastic clip thing to lock them into the radiator fittings.

[Ron]

I was hesitant about installing the oil filter lines myself but my brother-in-law has a bit more experience with automobiles and said it wouldn't be too bad. So, 3 hours later we got it done. There is almost no room under the truck to see anything. We had to put about 4 long extentions together on the rachet to reach the bolt on the side of the block. Then we had to take the bolt out of the driver's side motor mount and jack the motor up a little to snake the lines out and then snake the new ones in. All in all it wasn't too bad, but I couldn't have done it alone in my driveway.


67Truckin - Thanks for the help, once we got the old oil filter lines out we figured out which end the washer went on.