Hey all, I've searched the internet, but cant figure out how to fix this problem at all. So I'm turning to you all for some advice/guidance. 2002 Bonneville, keeps setting a P0336 code, crankshaft position sensor. It does this intermittently, and never when it's at my mechanics. I've replaced everything but the harmonic balancer, still does it. I'm totally lost here, can anyone give me a direction or idea where to go from here? Thanks in advance

There are teeth on the back of the HB that the crank sensor reads. If there is damage there or its installed incorrectly you will have issues. You said you've replaced everything except the HB, so what have you all replaced? The CPS and....?

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Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 55k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 95k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 260k | Official Bonneville Hauler

Crank position sensor, cam position sensor, plugs, wires, coils, icm.....

If it does it intermittently, its probably a wiring issue. I would check for damage to that small harness that controls the ignition (Crank sensor, cam sensor, ICM)

_________________
Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 55k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 95k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 260k | Official Bonneville Hauler

If it's similar to an older 3800, the harness running down to the crank sensor is tucked into some nooks that tend to wear through the loom and insulation. Seen it a few times.

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WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
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