No heat

Not getting any heat out of my 98 riv.. it was fine until I drained the radiator & reservoir refilled with 50/50 dexcool did I do something wrong?

Dan B wrote:

Not getting any heat out of my 98 riv.. it was fine until I drained the radiator & reservoir refilled with 50/50 dexcool did I do something wrong?

Radiator level is probably low. Wait until cool, then remove the cap and check.

Radiator & reservoir are full so dug deeper here on the board, led me to this located behind glove box, I'm guessing that crack isn't by design.. oh so backing up a little only driver side had no heat, passenger side has it.. I actually thought I had a rodent problem with all the noise under the dash.. this actuator I believe operates a blend door

fairly common problem and the aftermarket actuators sold via Amazon are fine actually. Just look for them using the GM part number(s) on the sticker on your actuator. OR you can also just get the gear - there's a couple people who 3D print the things and also see https://www.amazon.com/Blend-Door-Actuator-Gear-Rebuild/dp/B01BKW3AKI/ref=sr_1_1_sspa.

Most likely installing one of those $13.- gears will 100% fix your problem once-and-done.

Thanks for the tip!

Well crap all 5 actuators are cracked like that what the hell??

Dan B wrote:

Well crap all 5 actuators are cracked like that what the hell??

...dont overthink it, just replace the gears.

used to be able to get the older actuators with metal gears from junkyard(out of 80s GM pickup trucks for instance) and swap the old gears into the newer actuators.

not anymore really

Albertj

Not really over thinking just curious as to why they all broke.. it's a m.f.'er to reach 1 of them on the driver's side got the whole dash ripped out oh boy

The plasticizers gas out over time, making the part brittle. The hole in the factory gear is a bit smaller than the metal cylinder it's pressed on to, that's what holds the gear in place when it's new, and what causes the gear to split when it's old.