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Express & G-Series Vans Offered in both a full size van, or a large box truck, the Express is the modern GM workhorse

Chevrolet Express
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Old 08-23-2012, 03:34 PM
CF Beginner
Join Date: May 2010
Posts: 11
Default PO336 crank sensor

Hi all,

I have code po336 in a 2000 express 3500 5.7 I changed the sensor 2 times one from advance one from napa looks like same part from mexico should I try one from the dealership to get it runnin again or is there more of a problem with this code?

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Old 08-23-2012, 03:51 PM
kevinkpk's Avatar
CF Addict
Join Date: Jul 2011
Posts: 2,654
not anymore Kevin Koloff

I think you need to check wireing/connections
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Old 08-26-2012, 11:34 AM
CF Beginner
Join Date: May 2010
Posts: 11
Default van fired up new sensor

Hey its running again. After going through the procedure to check for a bad crank sensor which was one of the outside wires had 12vdc the other outside wire had 10vdc and as engine was turned by hand clockwise it was to go from 10 vdc to 0 vdc. It didnt go 10 to 0 so said it was bad. The center wire is ground so checked it with battery positive to get 12vdc. New part came and it fired up no shims required. So even new parts can be bad I ordered an ac delco brand still had same part numbers as advance and napa so no guarantees any of these parts work anymore.
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Old 09-02-2012, 05:03 PM
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Join Date: Sep 2012
Posts: 1
Default PO336 code

My 2006 Silverado Diesel Duramax is showing this code. Does anyone know where the crank sensor is located on the engine?
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Old 09-02-2012, 05:03 PM

2000, bad, cam, code, crank, duramax, engine, express, gm, po336, powered, sensor, shim, tsb, vans, vbulletin

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