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My Car is Being Sabotaged
7.62x39Lover
Member Posts: 3,939 ✭✭✭
Hi Guys,
People on this forum are very smart. I have seen a lot of good advice on here, and I need some.
2007 VW Jetta 2.5L Inline 5
Has gone through 3 crankshaft position sensors in one year.
I have spent tons of time and money chasing that ghost all year long.
I work at a mechanic shop as a service writer and have done all the work myself all year long.
I have never in my life heard of a crankshaft position sensor lasting as little as 3 days before.
I honestly think that my car is being sabotaged by my employer.
I would set up cameras on my car, but I am very strapped for cash because of what has gone on and I need
my employment.
What do I do?
Comments
Burn it for the insurance. I say burn it because no decent thief would steal it.
Get rid of it.
Explain how you might sabotage a CS sensor?
You sabotaged yourself. (when you bought a VW)
Suck it up, get a Toyota and move on.
You got some VW experience.
Experience is what you get when what you got is not what you wanted.
My Dodge Dakota would go through them in six months. I bought them at Auto Zone , no lifetime warranty. After the 4rth one I bought one at Napa, never had it go out again?? Maybe, try a different kind,brand?
I will have to try another brand for sure Grasshopper. These were from Autozone. I did utilize a lifetime warranty on them. Useless warranty if they do not last at all though.
Sounds like there is something else causing the sensors to fail. Here's an interesting article that might help.
https://knowhow.napaonline.com/common-crankshaft-sensor-issues/#:~:text=There%20are%20a%20few%20things,and%20vibrations%20of%20the%20engine.
Let us know what you figure out!
Sad part so many parts fail right out of the box and any length of time is really quenstable a few days or months
I watch a lot of the car youtube channels restororing , mechanical repair , garages and body shops and customizing
one thing about all have in common after market parts (china) so many do not work out of the package or only a short time after installing
Some will only use factory replacement parts no garuntee but odds in buyers favor
Same with sheetmetal made in China or some other similar country Korea none of it fits without a lot of effort
Some use Napa and have luck with them .but some other chain ran places not so much +
Not promoting any one
but check out south main auto
he seems like a great mechanic and person in upper NY
Uncle Tony's garage
Tony does more of a Gear head with years of racing and magazine writing experience
Plenty more I watch also
But working on cars my self for over 50 years like a lot of you
it's easy to pick out rhe quenstabe youtubers
Sorry for the short story but so many bad parts being made and then labeled under many brands its frustrating
OEM parts do cost more
I weigh that into my decision when it comes down to how easy to replace it when I buy parts anymore
if easy on off a few minutes give or take I will chance a discount part
but if i have to spend hours to replace and remove half the cat to get to it I will play odds of the OEM every time On such repairs
You are likely experiencing the result of cheap Chicom garbage parts. Check out the stuff in the article Neo posted. Buy a sensor from a VW dealer. You can find OEM parts online the at major sites. Myself, I locate the factory part number and then type that into Google.
Here is the OEM part # 07K906433B
When the mass airflow sensor went on my Nissan at about 400,000 miles,it still ran fine but was throwing a code.I went on line and the OEM part was $150. and the aftermarket part (probably Chinese) was $15.I bought the cheap part and it was fine for a few days.I was about 40 miles from home and it started running terrible,no codes ,but I managed to limp it home.Ordered the OEM part made by Denso and no more problems. Lesson learned.
If I had to bet, I'd put my money on the source of supply for your replacement sensors. Try getting OEM parts and see if it doesn't fix the issue.
And fiery auto crashes
Some will die in hot pursuit
While sifting through my ashes
Some will fall in love with life
And drink it from a fountain
That is pouring like an avalanche
Coming down the mountain
A crankshaft position sensor? Never heard of one. You have to ask yourself, how can a crankshaft change position. The main bearings are usually torqued on pretty tight and the crankshaft shouldn’t move. Most cars don’t ever turn over 3500 rpm and that’s in cruise going up a hill, 2000 to 2500 rpm normal highway speed. I would try rebooting on board computer.
Get a different job and then a Toyota😉
Wouldn't surprise me if it was a bunch of faulty crank sensors. It's a super common issue on German cars of that era. I just had a Bosch one fail in under three months on an '07 E class Benz. The amount of name brand electric components I have had fail in the past few years is ridiculous. I've been working professionally on Benz's for 21 years now and parts quality has never been this bad.
Wouldn't hurt to check any wiring associated with the CPS. I thought that sensor was going bad in my Nissan recently. Turns out the wire was messed up in one spot, where the coating had fallen off. Thankfully it was easy to get to, and to fix.
I agree with trying NAPA. I put a couple gas pumps on a truck from other auto parts stores and they failed. Probably been ten years and the NAPA pump is still going.
UUUUMMMM.....If the engine is running the crankshaft is moving?
You better hope so!
After doing the sensor replacements are you going through the 'relearn' process so it is in sync with the engine?
Consider getting a VW branded positon sensor from a dealer or online.
Electronic car parts are remanufactured sometimes. I had a VW and it rarely went wrong with VW parts but the remanufactured mass airflow sensor broke after a few years.
Had the same(or one of the many, many problems) with my 2006 vw. Ran fine, when it would. But the electrical gremlins would'nt quit. For goodnes sake, DO NOT BRING IT TO A VW DEALER. Gave mine away. Good luck.
The crank sensor monitors rpm's and the info is transmitted to the CPU to control ignition and injection timing.
Yes I agree the crankshaft is moving in a circular motion. But if the crankshaft is moving in an eccentric manner you will feel a vibration in the car before you spin a bearing. The tolerance of bearing and crankshaft alignment is held together by the main bearing support bridge and bolts. Very unlikely you will ever spin a main bearing now a days, unless someone unqualified has been practicing at being a shade tree mechanic.
The ignition and fuel timing are electronically controlled. There is no gear driving a distributor. The data from the CPS controls when the injectors and plugs fire.
They want to be able to only fire the injectors when the intake valve is open. They also use electronics instead of a gear on the camshaft and a vacuum advance to control when the plugs fire.
How would they sabotage? Why? Put paint on bolts. They cant remove without messing paint. Use trail cam. Take meds
I guess I’m confused on the name, or better yet to much old school. Seems they would call it an RPM monitor. Hell I thought the sensors was maybe for checking the crankshaft alignment.
As you can see then mom and dad never did invite the neighbors over and show me off as their brightest child. Lol
(Seems they would call it an RPM monitor.)
Well, yes they could. However it does much more than count RPM. As Gregor62 pointed out, it times spark and fuel injection. Plus along with the throttle position sensor (TPS) it interfaces with the transmission control unit (computer) to control shifting patterns.