Losing the battle, 2000 V70 GLT 2.4T

wo0ds · Post by **wo0ds** » 14 May 2025, 12:56

Bought 2 months ago. 94k miles honestly pretty clean. I went the rabbit hole of figuring out I had a bad ABS module (praise mattymoo). Since that has been solved I've been dealing with rough cold starts, and feels a bit sluggish. CEL was on previously with a P0300 (Random misfires) but ran again more or less fine except cold starts. Did the entire PCV kit from fcp euro. And now have a P1655. Looks like my camshaft valve solenoid is the new target. Started small since oem are pricey and just got a new gasket and took it apart and cleaned it. Nada. Other maintenance I've done since. Basically a 100k tune up new fluids all around. New plugs, new filters. New gas cap and oil filler cap. Couple of sensors while I was chasing the ABS module ghost. And a pnp switch. Again holy shit talk to matty moo if your have transmission errors. Could've saved myself some time and money. Before I did the breather kit I had been driving it with some royal purple to clean out the injectors but I don't know if it did much or even needed it. Im kinda lost and don't want to keep throwing $400 bolt ons at it guessing. My educated guess at this point are new injectors, maf sensor, or possibly a alternator not giving out enough juice. Which tested again idling and it was fine but the interior lights do have a small flicker while idling. Or you know 25 year old solenoid is probably toast clean or not.
Any help or new ideas is all I'm looking for or confirmation that I do indeed need to cough up the money for a new valve.

Post by **abscate** » 14 May 2025, 13:44

Does the solenoid check out at about 3.7 Ohms?

Whats the voltage on the hot side of the solenoid harness??

Post by **wizechatmgr** » 16 May 2025, 20:50

Has the coolant temp sensor been replaced or at least tested/verified? When they go bad, it makes starting a real pain in the ...

Do you have access to someone with VIDA? Then you can see the misfire counts in near realtime.

wo0ds · Post by **wo0ds** » 17 May 2025, 16:44

The misfire code went away after the PCV kit was done. As I mentioned before I had already taken apart the camshaft valve solenoid to clean and look for damage. I went to test my resistance on it and it looked good. I read a tip that worked amazingly. Instead of running a battery or something to test the solenoid. I was advised to simply remove the solenoid and leave it attached to the harness and turn the power on in the car. DONT START THE CAR. If it works obviously you'll hear it clicking about. For some reason or another that I cannot explain nor will fight with, after I did this and confirmed in fact that wiring was good and the solenoid was functioning. I just put it all back together and had convinced myself that it was my injectors all along codes be damned. I was calling it for the evening and just put a bottle of injector cleaner from Lucas in and was just gonna let it idle for 20 mins. Again I cannot explain but the check engine light was gone. Either the valve freed up something when clicking it out of the housing. Or whoever last either messed with that part did not tighten it down very well which I fixed. No new parts. Even after I took it apart the first time to clean it nothing changed. So I'm lost as to what changed. But it's been 3 days and it hasn't come back and is running smoother.

wo0ds · Post by **wo0ds** » 17 May 2025, 21:43

Went to get tacos.....it's back on. Took it apart again and did the same test. This time it seemed to be working but not everytime. Sometimes a click when I put the key in, others it would click after stage 2. I really don't want it to be the solenoid cause I don't wanna wire the new plug or spend 500. I knew I should stay skeptical.

Post by **Sveedy** » 18 May 2025, 09:25

I don't know where you are in this fine state, or if you have access to a Pick & Pull type of junkyard, but I'd go grab a solenoid for next to nothing and see if the problem persists. If it does, then you can probably rule the solenoid out. If it's fixed, well there you go.

wo0ds · Post by **wo0ds** » 18 May 2025, 13:48

Yep that's my plan today or tomorrow to find one. Double checking my harness as well it looks like one of the wires got knicked by the timing cover bolts

wo0ds · Post by **wo0ds** » 18 May 2025, 14:36

I found a 2000 S70 in nearby that just got to the yard so it should still have it. Would this fit mine aswell. Both are 2.4

Post by **Sveedy** » 18 May 2025, 15:03

Someone else will know for sure, but if it has the exhaust vvt, then obviously yes. But somewhere in there they have vvt on the intake. I don't know if both sensors are the same, but you could just look them both up online to check. I would think they are the same, since it's just a basic switch at heart.

Post by **abscate** » 20 May 2025, 18:11

Your turbo GLT h as exhaust VVT, while a NA 2000 base model has intake VVT. THEsolenoids are different.