What did you do to your Blazer/Jimmy today?

[asolde]

Originally Posted by DeadheadNM

I'm under the dash doing nearly the same. If you have any tips for digging out the heater core let me know. I'm still working through an issue with my fuel gauge and then on to the heater core. I got a made in Mexico bronze/brass core from Rockauto as I couldn't locate a new US example - will add some remaining tower clamps and a new heater control valve at the same time.

Pete one thing for sure you have to drop the inner wheel well down to gain access to the lower bolts on the heater core housing. While you have all of that apart on the inside of the heater core housing replace all the seals on the box.

[DeadheadNM]

Originally Posted by asolde

Pete one thing for sure you have to drop the inner wheel well down to gain access to the lower bolts on the heater core housing. While you have all of that apart on the inside of the heater core housing replace all the seals on the box.

Great idea thanks. My heater doesn't blow hot air - must be something a miss in the duct work. The heater valve does shunt hot coolant to the core. Need to trouble shoot that after my cluster issue is resolved.

[asolde]

Did my heater core today, 6 hour job. Were the stock heater cores made by Harrison just wondering?

[DeadheadNM]

Originally Posted by asolde

Did my heater core today, 6 hour job. Were the stock heater cores made by Harrison just wondering?

Sounds painful - I may do that over Memorial Day weekend. I believe Harrison did make the stock cores. How did your replacement core fit?

[asolde]

Originally Posted by DeadheadNM

Sounds painful - I may do that over Memorial Day weekend. I believe Harrison did make the stock cores. How did your replacement core fit?

The replacement core fit fine (Ready-Aire, Vista-Pro). I believe it is the same one you got from Rock Auto.