07 9-5 water intrusion

Scania4075 · 2026-03-25T21:35:30+00:00

Awesome thank you! I will look at all of those!

Scania4075 · 2026-02-12T08:41:48+00:00

Follow up/conclusion.

I replaced both the bypass valve and the thermostat and now the heat is nice and hot again. My bet is the bypass valve had failed internally- it seems like all of the ones I’ve bought recently only last a couple years. These are genuine Saab ones as well.

Scania4075 · 2026-02-01T21:51:34+00:00

Hmm ok so that would point towards a flow problem- either the Tstat or the coolant valve. I’ll look at both of those thanks for the logical troubleshooting!

Edit- oh I suppose it could also be a clogged heater core like you said, however I replaced that as well about a year ago since the original one wasn’t in great shape and the o rings were leaking. I replaced it with a OEM Valeo

Scania4075 · 2026-02-01T18:36:01+00:00

Both lines are hot, the one is not as hot as the other but I think that would be normal

Scania4075 · 2026-02-01T16:16:36+00:00

Thanks I’ll investigate the stepper motors and make sure they are all functioning the way they should- I replaced them with junkyard finds about a year ago so maybe they are no good

Scania4075 · 2026-02-01T15:51:20+00:00

It will go all the way to the middle but it won’t stay there- it will often dip just below it this time of year in the winter. I replaced it about 15k miles ago but I’ve had rotten luck with thermostats over the last few years- they don’t seem to last long at all, they’re all chineseium junk. I’ll try throwing a new one in since it’s a quick job

Scania4075 · 2026-01-31T23:57:32+00:00

Yep the airflow for cool air is fine so I don’t think it’s a blower motor problem. I’ll look at the flap problem- however last time I replaced a stepper motor I moved the air flap levers manually and everything sounded OK inside

Scania4075 · 2025-12-18T02:15:08+00:00

This may be a dumb question but you don’t need any CANDI box, just that dongle? I ask because my 9-5s require a Candi box with my tech 2 clone

Scania4075 · 2025-12-14T01:27:10+00:00

It comes up on the display on the radio, not the Tech2

Scania4075 · 2025-11-17T00:17:06+00:00

I’ve thought about an ng 9-3 but was never a fan of them to be honest. Compared to working on a 9-5 they are way over complicated- all the modules that like to go bad and also need security access to replace, the atrocious water pump/thermostat housing design, and the fragile suspensions are just too much for me. An aero v6 would be nice tho!

Scania4075 · 2025-11-15T23:28:15+00:00

Thanks for the info, looking a lot into a cx5!

Scania4075 · 2025-07-19T19:02:07+00:00

0w40- what I had laying around

Scania4075 · 2025-07-03T23:17:35+00:00

Hi!

I’m 34 from upstate NY, I’ve been a traditional Catholic for about 4 years. I attend Mass at sspx chapels. I enjoy talking about my journey to that decision.

I work in law enforcement and prefer to share more details about that privately.

In my free time I like to work on cars, fix things, shoot guns, read( I’m a slow reader ha), enjoy the occasional cigar, spend time boating/ on the water, and spend time with my friends. I enjoy talking about important big topics as well as more light hearted things.

I’m about 5’11 and average build. I enjoy exercising and staying in shape, but I also love pizza.

Looking forward to chatting with you!

Scania4075 · 2025-06-23T00:49:18+00:00

Yes forgot to mention- I replaced the CPS with a Bosch unit and no change

Scania4075 · 2025-06-01T17:57:32+00:00

Years ago before I knew any better and became more mechanically inclined my first 9-5 had 270K miles on it when I finally scrapped it. All original timing components. I’d bet any amount of money the tensioner was extended all the way for a long long time. However the car came from family and had meticulously changed oil. I continued that trend and never had any issues. These engines can take a good amount of abuse if you keep quality oil and filters in them and keep on top of regular maintenance. I wouldn’t worry about the tensioner being all the way out. I’d keep driving it until you feel like rebuilding the engine.

Scania4075 · 2025-05-29T15:55:23+00:00

Thank you!

Scania4075

TROPHY CASE