2002 V70 XC AWD Poor running, rookie, Denver thread

Post by **abscate** » 22 Dec 2016, 10:02

That tool locks the cams together but doesn't pre-load the hubs. This is all academic, there is no way to know if s/he knows the procedure other than checking the hubs line up, so I think that is what I would check .

rookiemechanic · Post by **rookiemechanic** » 22 Dec 2016, 11:17

abscate wrote:That tool locks the cams together but doesn't pre-load the hubs. This is all academic, there is no way to know if s/he knows the procedure other than checking the hubs line up, so I think that is what I would check .

Ok. So should I ask him to pre-load the hubs or atleast check the timing of the hubs? I don't know exactly what you mean by pre-loading the hub. I am guessing you mean how the hubs are placed or aligned to the system? Any idea on how much it migh cost? Thanks

Post by **precopster** » 23 Dec 2016, 02:48

This whole thing could be a TPS 1 or TPS 2 (ETM) fault that his scanner can't pick up.

The Volvo ECM doesn't give all its secrets away to just any scanner. I would get it scanned with Vida/Dice before spending any more time on cam timing if he did all you describe and is 100% certain that the cam timing is fine. If he's not certain of it move on and get another opinion.

Post by **abscate** » 23 Dec 2016, 06:12

There are lots of good indies in CO who know these cars.. No need to pay someone to learn in them

rookiemechanic · Post by **rookiemechanic** » 24 Dec 2016, 13:43

precopster wrote:This whole thing could be a TPS 1 or TPS 2 (ETM) fault that his scanner can't pick up.

The Volvo ECM doesn't give all its secrets away to just any scanner. I would get it scanned with Vida/Dice before spending any more time on cam timing if he did all you describe and is 100% certain that the cam timing is fine. If he's not certain of it move on and get another opinion.

If this is (the link below) Vida/Dice scanner then my mechanic used it. I was there in his shop a week ago and while he was showing me the gunk with the camshaft sensor I saw the Vida/dice scanner plugged in the car. I am positive that the one I saw that day matches with the picture in the link below. He is a known volvo mechanic in town and customers have given him pretty good reviews. I also know that the volvo dealership also work with him ocassionally. As far as the codes go he keeps getting the same RPM (camshaft and crankshaft sensor) codes even after replacing the crankshaft and camshaft sensors. I believe these codes are the same which I also picked up from autozone (P0016 and P0014). I also asked him couple of times to see if there are any codes for the ETM/ETA coming up and so far there are no ETM error codes. My suspicion was also ETM in the beginning (which was what the volvo dealership found in the beginning) but since I cleaned the plate and inside of the throttle body the error codes never appeared ( from the volvo specialist not the dealership). I am taking the car to the same mechanic again on Tuesday (27th Dec) for further diagnosis and repair. I am crossing my fingers for a everlasting repair work this time. I am a poor graduate student and I have spent so much already just in the repair that I can't stop it here now. I will have to go all the way till it is fixed for good.
http://i.ebayimg.com/00/s/ODAwWDgwMA==/ ... 880000500F

Post by **precopster** » 25 Dec 2016, 23:06

From this point on it's a part swapping exercise and you're blessed that you have a Volvo mechanic because he will have access to parts he can swap over such as CVVT solenoid (biggest suspect here), TCV, MAF, etc

Afew months ago one of the local Volvo indies sent a customer my way because the customer was playing cheap and wouldn't pay his hourly cost for diagnosis. He had TCV a code and about an hour into the diagnosis he finally casually mentioned he got the code after swapping in a non-genuine MAF from eBay. After swapping in a Bosch MAF the TCV code disappeared.

rookiemechanic · Post by **rookiemechanic** » 27 Dec 2016, 10:07

precopster wrote:From this point on it's a part swapping exercise and you're blessed that you have a Volvo mechanic because he will have access to parts he can swap over such as CVVT solenoid (biggest suspect here), TCV, MAF, etc

Afew months ago one of the local Volvo indies sent a customer my way because the customer was playing cheap and wouldn't pay his hourly cost for diagnosis. He had TCV a code and about an hour into the diagnosis he finally casually mentioned he got the code after swapping in a non-genuine MAF from eBay. After swapping in a Bosch MAF the TCV code disappeared.

I hope it is the CVVT solenoid and not something big. As I mentioned before, he did swap the solenoid (genuine used but in good shape) in front of me as the one originally in the car had silicon gunk on it. I wonder why it did not solve the problem. I am going back to him this afternoon and see what he says. I will update it here. Thanks

rookiemechanic · Post by **rookiemechanic** » 29 Dec 2016, 17:05

So I called the mechanic today and he found some copper wire in the space underneath the crankshaft or somewhere near the fly wheel! The copper wire got in there most likely from the cranksensor which busted when I first got the car. The cranksensor bracket was broken and so the sensor was sitting in there tight and one day I opened the hood to find the sensor busted with copper wires everywhere. I cleabed it as much as I could and new cranksensor was installed with the new bracket. The mechanic is wondering if that's the reason for the crank sensor and cam sensor code that he keeps getting.
He also suspects that the flywheel could have been bent due to the copper wire or there is a wrong flywheel in the car. Is there a way to find out if the flywheel which is there is a right one for the car? I am wondering why he is not sure if the flywheel in the car installed right now is the right one or not. That's just sounds strange for a mechanic to say that. He quoted about $1000 (including used flywheel) for the repair and says it is going to be a 9 hour job to install a flywheel. It looks like the transmission has to be pulled off. I am wondering what to do right now. Can this be avoided.
Thanks

Post by **precopster** » 29 Dec 2016, 22:09

He can remove the starter quite easily and view all the holes in the reluctance rings on the drive-plate and make sure they're not damaged by turning over the motor by hand (this is not called a "flywheel" in an automatic car but a drive-plate) He can also count how many reluctance holes there are and what size they are. If they're a match with his "Parts" drive-plate then there's no need to replace it. The copper wire theory isn't holding a lot of ground with me. I fail to see how copper wire could get stuck in the sensor hole but I guess anything's possible.

I think you may have a faulty ECM (engine control module) and they can be cloned by XeModex and others. Good luck with it.

rookiemechanic · Post by **rookiemechanic** » 30 Dec 2016, 01:15

precopster wrote:He can remove the starter quite easily and view all the holes in the reluctance rings on the drive-plate and make sure they're not damaged by turning over the motor by hand (this is not called a "flywheel" in an automatic car but a drive-plate) He can also count how many reluctance holes there are and what size they are. If they're a match with his "Parts" drive-plate then there's no need to replace it. The copper wire theory isn't holding a lot of ground with me. I fail to see how copper wire could get stuck in the sensor hole but I guess anything's possible.

I think you may have a faulty ECM (engine control module) and they can be cloned by XeModex and others. Good luck with it.

Is there a way to diagnose a faulty ECM? As per my limited knowledge I don't have any symptoms that suggests ECM failure. By the way I am just saying this based on all the electrical components inside the car. They seem to be working fine. Also scanning for codes is not showing any ECM communications failure message. However, I do have SRS air bag service urgent message and sometimes the door lock buttons are slow in responding. Could this be related? I don't know if i should just go with the mechanic's word or get a second opinion from another mechanic. The only other volvo specialist I have is the volvo dealership. I have had a very bad experience there and I just don't trust the head service guy at all. Dishonesty is written all over his face. Not being mean here but the experience I had was really horrible. So I have to go all the way to denver if I want a second opinion. However, my mechanic told me that if this does not fix the problem than he won't charge me. However, its a very relative statement I guess. What if i get the problem again after couple of months of driving. I don't even know upto how many months mechanics can be deemed accountable for their repair work.
Many thanks!

2002 V70 XC AWD Poor running, rookie, Denver thread

Re: 2002 V70 XC AWD T- Limp Mode! Yellow arrow sign, check engine light, ETA, TCV valve, PNP switch or something else?