Pontiac Solstice Forum - View Single Post

Quote:

Originally Posted by sol79

OK, I did some thinking today and I've decided that I might replace my radiator cap. Maybe it isn't the cap, but if so, it would be a cheap fix. Plus, that wouldn't necessarily show up on a pressure test right? Don't they take the cap off for that test?

Anyway, I decided to order the part, so I did some searching.

AC Delco's site lists "ACDelco Part # RC98" as the radiator cap. Guess what? It looks different than my cap! (There is a picture)

Well, I do a serach on a different site:

https://www.rockauto.com/catalog/raframecatalog.php

Has a photo of the cap and lists it as:

ACDELCO Part # RC98 (replaces RC100 #22671020)

What gives? It appears that GM has replaced the radiator cap for 2006 and 2007 Solstices with a different part. It has slightly different markings and a different part number.

Is it possible they've redesigned the cap?

It's possible. It may also be they're getting the replacements from a different supplier. I know on the 94-96 impalas, the original cap had a 16 psi spring. GM later recommended replacing it with the 18 psi cap off the LT1 camaros and firebirds.

__________________
Stonebreaker
1996 Impala SS 11.99 @ 115 mph
PhD in RE (Redneck Engineering)
It works in practice, but does it work in theory?

	stonebreaker Member Join Date: Apr 2005	Quote: Originally Posted by sol79 OK, I did some thinking today and I've decided that I might replace my radiator cap. Maybe it isn't the cap, but if so, it would be a cheap fix. Plus, that wouldn't necessarily show up on a pressure test right? Don't they take the cap off for that test? Anyway, I decided to order the part, so I did some searching. AC Delco's site lists "ACDelco Part # RC98" as the radiator cap. Guess what? It looks different than my cap! (There is a picture) Well, I do a serach on a different site: https://www.rockauto.com/catalog/raframecatalog.php Has a photo of the cap and lists it as: ACDELCO Part # RC98 (replaces RC100 #22671020) What gives? It appears that GM has replaced the radiator cap for 2006 and 2007 Solstices with a different part. It has slightly different markings and a different part number. Is it possible they've redesigned the cap? It's possible. It may also be they're getting the replacements from a different supplier. I know on the 94-96 impalas, the original cap had a 16 psi spring. GM later recommended replacing it with the 18 psi cap off the LT1 camaros and firebirds. __________________ Stonebreaker 1996 Impala SS 11.99 @ 115 mph PhD in RE (Redneck Engineering) It works in practice, but does it work in theory?