I HAVE A 93 CHEVY SUBURBAN RUNS GREAT BUT I ...

  • Tiny
  • deltorogeno
  • 1993 Chevrolet Suburban
  • 130,000 miles

I have a 93 chevy suburban runs great, but I replaced the heater core, and drained the radiator, I also replaced the thermostat, but by the oil filter thers too little lines that leak antifreeze, and I don't know why it leaks, please help.

Saturday, January 19th, 2013 AT 7:41 PM

12 Answers

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Those should be oil cooler lines. They should not be leaking coolant.

Are you sure it is coolant?

Roy

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 7:46 PM
  • Tiny
  • deltorogeno
  • Member

Ok yes I'm sure its coolant, its green, I just drained the radiator last night and replaced the antifreeze

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 7:51 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

What motor?

Roy

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 7:52 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Do you have a rear heater unit?

Roy

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 7:55 PM
  • Tiny
  • deltorogeno
  • Member

Here's a picture

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 7:56 PM
  • Tiny
  • deltorogeno
  • Member

Its a 350 small block and yes iit has rear heating

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 7:57 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Those are the oil cooler lines. The coolant is coming from above and dripping onto the lines. The freeze plug above it does not look too good.

Roy

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 7:59 PM
  • Tiny
  • deltorogeno
  • Member

Ok, how do I replace the freeze plug?

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 8:05 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

If that is the issue, drain all the coolant, knock the plug in and then remove with pliers and install the new one. Make sure it is not the intake manifold from the top. Get it pressure tested to be sure

Roy

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 8:07 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,410 posts

I agree with ASE, those are oil cooler lines. You can see where it is wet above the oil filter and running down. A freeze plug isn't hard to replace. The problem is if you have the room to work. Basically you need to pry out the old one and tap a new one in place.

Was this
answer
helpful?
Yes
No
Saturday, January 19th, 2013 AT 8:08 PM

Please login or register to post a reply.

Similar Questions