Mechanics

98 CRANK SENSOR ...................... CODE P1345

Chevrolet Silverado

Code P1345

1 98 Chevy Silverado Truck
2 156,000
3 Auto
4 4X4
5 won't Idle, runs very ruff
6 None
7 Replaced Moter

Additional information:

New 350 moter.

Book sead this could be the crank or the cam sensor. I was told it had no cam sensor?
The moter will not time, if I change the poition of the distributer the computer compansates for it.

My Question is this:
When I put the Harmonic Balancer on I had a kit of parts that came with the moter and there was a sleave that came with the new Balancer and it this parts kit. It fit over the crank shaft and I knocked it into the timing chain cover.
Is this part interfearing with the Crank Sensor reading?
Could it have damaged the sensor itsalf?
Should it not be there?
Or do I just nead to get a new Crank Sensor?

Thanks Dave
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BAGoldPanner
July 25, 2007.




It does have a Cam sensor. It is in the distributor. It is a hall effects senor that works off the ring in the distributor. I would check and make sure that the distriuter is properly installed. If it is one tooth off it will set the light. Also if it set incorrectly you will not be able to get it in time. The distributor is supposed to be set to Zero and the computer adjusts all the timing. If the readings from the Crankshaft sensor and the Camshaft sensor are not corasponding the code will set. I would say that it has to be something with the way you have that distributor in there.

Cly

Tiny
Cly
Jul 25, 2007.
I'll check it again but I thought the same thing and have installed the distributer 3 times now.

Tiny
BAGoldPanner
Jul 25, 2007.
Well I went throught pulling the Distributer and seting TDC again. Same thing.

Tiny
BAGoldPanner
Jul 25, 2007.
Only thing that I can think of is that the distributor must be bad. Make sure the rotor fits on the distributor nice and tight. If that looks ok I would say to replace the distrbutor.

Cly
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Tiny
Cly
Jul 26, 2007.
Any Chevy on OBD2 any change of balancer, in & out of a distributor, change of engine will require a crank relearn that is synn by using a factory or equivalent capable scanner. Get a real chevy manual and read the crank relearn procedure. Thats y u are getting a crank code.

Tiny
Kin chan
Jul 26, 2007.
It is setting a P1335. If it was just the relearn issue then it would set a P1336 for the cam sensor variation not being relearned. I still think it something to do with that distributor being bad and that it needs to be set on zero after it is replaced.

Cly

Tiny
Cly
Jul 27, 2007.
New motor & harmonic balancer installed. No relearn has perform. What's wrong with this picture. Y should what code suppose to come up so important. Issue is what is the computer seeing on the crank corresponding with the cam. Is it 0 deg or what else. Dodge crank sensor goes out throw no crank code neither. Seein what the ecm seeing and think as it intrepret is where the problem came from. If u seeing the cam deg is all over the place. Then it is time to think of the distributor or the wiring.

Tiny
Kin chan
Jul 27, 2007.
This does not mean the distributer is bad it is most likley one or two teeth off it can have minor adjustments to it but you need a good scan tool to set it it has to be with in + or minus one to two degrees this can be veiwed on dealer or high end snap on or matco scaners as well as a few others. if you set it and it still is reading a good bit off 30 to 50 degrees you either have a bad distributor gear or a bad cam sensor the cam sensor is located inside the ditributor here is a link to that part. http://www.oreillyauto.com/site/c/search.oap?keyword=camshaft+position+sensor&year=1998&make=Chevrolet&model=K3500+Pickup+4WD&vi=5013394 if you suspect it is the gear at the bottom of the distributor grab the rotor check for excessive play if it seems loose that is probally the problem you can just replace the gear here is a link to that part.
http://www.oreillyauto.com/site/c/search.oap?keyword=distributor+drive+gear&year=1998&make=Chevrolet&model=K3500+Pickup+4WD&vi=5013394

If that is the problem and you have the time to wait you could oder a complete ditributor for some where for not much more if not less than the individual parts here is a link for that as well.

http://www.ebay.com/itm/BILLET-vortec-V8-5-7-350-5-0-305-7-4-454-distributor-/320605212568?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1998%7CMake%3AChevrolet%7CModel%3AK3500%7CSubmodel%3ASilverado%7CEngine+-+Liter_Display%3A5.7L&hash=item4aa58f4f98&vxp=mtr

I hope this was of some help to you or anyone else that might need the info if you have any questions i will try to help the best I can her is a link to ask me directly. https://http://www.facebook.com/#!/DrAutoJax


Tiny
DrAutoCom
Apr 18, 2014.

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