Hi
I'm a newbbe here and have alot of questions I'm working on my brother in laws 85 and it has a few issues first is a heating problem The cooling fan doesn't seem to kick on and setting at a idle it will go to 224 Question at what temp does the fan kick on and where is the relay for fan located?? is it also fused??
nextquestion The heater core is leaking and I need to replace it I can sure use some major help on this one.I have more but I'll start here. This car was not driven for alot of years and my brothern law purchased it about a year ago and wants me to get it relyable and to run good.Thanks
clocknut

 

[sm=welcomesign.gif]

Got the following from Autozone:

REMOVAL & INSTALLATION HEATER CORE



CAUTION

[align=center]







When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old. [/align]
1984-88 Vehicles
See Figure 1

Disconnect the negative battery cable. Drain the cooling system into a suitable container.
Remove the instrument cluster bezel including the tilt wheel lever and instrument panel pad.
Remove the A/C distributor duct and disconnect the flex hose.
Remove the right side hush panel.
Remove the side window defroster flex hose.
Remove the side window defroster to heater cover screws and disconnect the extension.
Remove the temperature control cable and bracket assembly at heater cover including disconnecting heater door control shaft. [/ol]

Make sure the ignition switch is
OFF prior to disconnecting the ECM.

Remove the ECM (Electric Control Module) and disconnect the electrical connectors.
Remove the tubular support brace from the door pillar to aluminum, instrument panel reinforcement brace.
Remove heater core cover attaching screws. [/ol]

Fig. 1: Exploded view of a typical heater core assembly


Remove heater pipe and heater water control bracket attaching screws.
Remove heater hose at heater core pipes.
Remove the heater core.
Installation is the reverse of the removal procedure. Fill the cooling system with the proper type and amount of coolant. [/ol]
I can't get the stupid pic for "fig 1" above to insert so here is the link:

http://www.autozone.com/servlet/UiBr...3d802136da.jsp

Good luck bro and hope this help[sm=icon_cheers.gif]

 

Hey thanks alot that will help. Looks like you have to tear the hole car apart.
This should be alot of fun.
Thanks
clocknut

 

This is true in many vehicles. Not just are bloved Vettes.

It will be a knuckle buster for sure[:@]