2000 v70xc car died and now won't start

mrscullini · Post by **mrscullini** » 10 Dec 2014, 20:29

not sure what the problem is. was driving on the highway at 65 mph. seems as though it wouldn't hold speed while going up minor inclines, would drop down a gear to get back up to 65.

then, all of a sudden, lost power all together and the car stalled. i was able to coast over to the shoulder. now it won't start. it seems the starter is spinning but not engaging with the flywheel.

i have the following codes,

644A
4801
6806
3000 camshaft position sensor

the first 3 i have been battling off and on. the 3000 i have never seen before.

any thoughts are greatly appreciated.

mrscullini · Post by **mrscullini** » 10 Dec 2014, 20:30

sorry, i've got about 213k on it. at about 185k, i had burned a valve and pulled the head to repair. it seems to have run great for about 30k, until today.

mrscullini · Post by **mrscullini** » 10 Dec 2014, 21:13

after a little research, i suspect that 644A and 3000 are related. both cam codes. wondering if the 644A caused the 3000.

is the cam shaft position sensor located under the torque mount? is there a way to test this sensor?

Post by **oragex** » 10 Dec 2014, 21:50

The fact that the starter doesn't spin the flywheel, could have the flywheel lost some teeth? The timing belt is still at the marks?

mrscullini · Post by **mrscullini** » 10 Dec 2014, 22:21

oragex wrote:The fact that the starter doesn't spin the flywheel, could have the flywheel lost some teeth? The timing belt is still at the marks?

thx. that thought crossed my mind. i haven't had any starting issue, no have i crashed the bendix into the flywheel with the motor running. so i'm hard pressed to think i lost teeth on the flywheel. i tend to think the bendix may have failed with 213k on it.

i tend to think that the starting issue and the stall out issue may be unrelated.

Post by **abscate** » 11 Dec 2014, 04:37

I think you will have to resolve that Bendix is due first, then start with the "no start" thread

mrscullini · Post by **mrscullini** » 11 Dec 2014, 06:58

abscate wrote:I think you will have to resolve that Bendix is due first, then start with the "no start" thread

thx. update....i thought it was the bendix not engaging because when trying to start it sounds like the starter is just spinning, not cranking the motor. well...the motor is turning, i look at the camshafts and they are advancing each time i try to start.

with the motor spinning so freely, it makes me think i've lost compression on all 5 cylinders. what are the chances of this happening all at once?

i burned an intake valve last year, had the head tested, reworked and the valve replaced. even with a burned valve the motor would run. i think this is much worse.

thoughts????

Rbaratt · Post by **Rbaratt** » 11 Dec 2014, 10:46

Sounds like my '95 when it gets "lawnmower syndrome" . My fix is to have the battery jumped to a running vehicle and then crank the car over with the gas pedal to the floor. I crank for very long periods of time, I have never timed it but maybe up to 30 seconds or more. Others pour oil in each cylinder to cure this. to avoid this I am very careful not to start this car and stop it before it runs for a while. Search this forum for lawnmower syndrome. RSPI has a video on it as well.

Rbaratt · Post by **Rbaratt** » 11 Dec 2014, 11:00

The only thing that concerns me is that you were already driving when this happened. My problem was always initiated by starting a cold engine and then shutting it back off without letting it warm up...but here is a link to a video:

https://www.matthewsvolvosite.com/forums ... =1&t=18175
http://www.google.com/url?sa=t&rct=j&q= ... 3UVLEeH6lg

mrscullini · Post by **mrscullini** » 11 Dec 2014, 11:12

Rbaratt wrote:The only thing that concerns me is that you were already driving when this happened. My problem was always initiated by starting a cold engine and then shutting it back off without letting it warm up...but here is a link to a video:

https://www.matthewsvolvosite.com/forums ... =1&t=18175
http://www.google.com/url?sa=t&rct=j&q= ... 3UVLEeH6lg

thx. this is the first time hearing about the "lawnmower syndrome", go figure. from doing a quick search, like you said, it seems that condition occurs on a cold motor. i was up at normal operating temp. i'm going to pull the plugs and do a compression test. i suspect the compression is very low. wondering if my 644a and 3000 code that the cam timing is off holding a valve slightly open on the compression stroke?