: E-bay Heater Control Valves - Any Good?

05-06-11, 12:04 PM
How about those $29.95 HCVs on Ebay

http://cgi.ebay.com/ebaymotors/CADILAC-CATERA-HEATER-CONTROL-VALVE-90566947-15-50574-_W0QQcmdZViewItemQQfitsZModelQ3aCateraQQhashZitem2 30f082eaeQQitemZ150576049838QQptZMotorsQ5fCarQ5fTr uckQ5fPartsQ5fAccessories

Anyone used them? I have had this car since new in 1996, and must have had at least a dozen HCVs, most of them expensive OEM ones that don't last more than a couple of years before they leak. Are there different qualities? Has any supplier solved this problem yet?

05-06-11, 07:44 PM
Just replaced a few weeks ago so far so good ...one i.got said ac delco right on it

05-12-11, 12:52 AM
I just ordered one from this same seller...will be here on Friday.

05-17-11, 11:25 PM
I used them a few years back and just had to replace it again. They're the same. No better, no worse.

05-20-11, 06:58 PM
Got the one in I ordered and did the modification like I did on my 98 catera...this part was for my in laws car (2001 catera) so far so good.


05-20-11, 09:35 PM
actually thats why I came to the forum today. I bought one from ebay about 4 or 5 months ago and it just started leaking as I pulled in to the garage...Now Im looking for a way to bypass it all together. Tired of changing this damn part.

05-20-11, 10:49 PM
Did you do the modification or is the HCV at the same location? I also flushed the whole system out with the peak radiator flush and using just the all make and all model anitfreeze now. I also, did this on my 98 catera 3 years ago during the modification and so far no issues.

Also, the one I got was the Febi brand from ebay for the 2001 catera....we'll see how it performs.

05-20-11, 11:24 PM
mine is still in the back but Ive taken that car apart so much that I can do it pretty quick. I bought a T-connector and Im gonna try to bypass it tonight. We'll see what happens. Ill take pics and what not

05-21-11, 10:05 AM
okay...keep us posted!!! Also, what are you going to do with the vaccum line..........just plug it for now?

05-21-11, 04:42 PM
I just plugged the vacuum line. So far its working fine. No leaks and the temp is staying cool. The car heated up operating temp as fast as it normally does. So for $5 its a quick cheap fix. Took me about 30 min from start to finish and most of that time is spent removing/installing the intake and what not. I havent tested the heater yet but I assume it will still work since the coolant is constantly flowing through the heater core. Does anyone have any idea why we have a heater bypass valve?



*Sorry guys, fixed the image links

05-21-11, 06:18 PM
here is an article about the HCV.



12-01-11, 09:53 PM
As an update, the heater does work still. So this is a good alternative to replacing the valve all the time.