schwarzwagen,
I agree on the heat build up. I live in the Palm Springs area where it is usually 104-118 for 3-4 months running.(cools down in the evening) Every time I come back home, the car goes in the garage and up comes the hood. We just replaced the wye fitting and found 3-4 other defective hoses/fittings in the ghastly area behind the engine and the firewall. I'm sure the PO never raised the hood. luckily for me, he lived over on the coast.
Anziani
'97 CL600 50K