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Old 05-02-2014, 06:31 PM   #1
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Default crank shaft sensor 1998 Silverado K1500

Truck keeps giving me ckp sensor out of range. Done replaced it checked for cracks or frayed wires, all looks good. Tested with test light. Truck wrong start and keeps bringing up same code.
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Old 05-02-2014, 10:28 PM   #2
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What is the info on your truck?

This might be of some help. Did you inspect the vanes on the pulley to see if they were bent or damaged?

DTC P0336

Circuit Description





The crankshaft position (CKP) sensor signal indicates the crankshaft speed and position. The CKP sensor is connected directly to the powertrain control module (PCM) and consists of the following circuits:

The 12-volt reference circuit
The low reference circuit
The CKP sensor signal circuit

Conditions for Running the DTC

The engine is cranking or running.

Conditions for Setting the DTC

The PCM determines that the CKP sensor signal is out of range for less than 2 seconds.

Action Taken When the DTC Sets




The control module illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.

The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.

Conditions for Clearing the MIL/DTC

The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
Clear the MIL and the DTC with a scan tool.

Diagnostic Aids
Important
Remove any debris from the PCM module connector surfaces before servicing the PCM module. Inspect the PCM module connector gaskets when you diagnose or replace the modules. Ensure that the gaskets are installed correctly. The gaskets prevent contaminate intrusion into the PCM modules.

The following conditions may cause this DTC to set:
Poor connections--Refer to Testing for Intermittent and Poor Connections in Wiring Systems.
Crankshaft reluctor wheel damage, or improper installation
The sensor coming in contact with the reluctor wheel
The engine running out of fuel
If the crankshaft rotates backwards, this DTC sets. This condition only occurs with vehicles that are equipped with a manual transmission. This condition occurs when a vehicle is on an incline, and the clutch is released and an engine stall occurs.
Excess crankshaft end play will cause the CKP sensor reluctor wheel to move out of alignment with the CKP sensor. This could result in any one of the following conditions:
A no start
A start and stall
Erratic performance
An improperly-installed propeller shaft could cause excess crankshaft end play.
For an intermittent condition condition, refer to Intermittent Conditions .
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Old 05-03-2014, 08:58 AM   #3
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it helps if you post the code number there are probably a dozen codes related to crank or cam sensors

in his profile it says 98 1500 5.7, the most common cam issue is p1345 cam crank correlation . which means the cam sensor in the dist is more than 20 degrees out. this happens if no one has messed with the dist by the gear on the dist wearing out. if someone has messed with the dist the "cam retard" needs to be set by a higher end scanner. if you have to replace the dist it also has to be set. call around to different shops i found one that does mine for 25 bucks, dealer probably charges 5 or 6 times that

if it is the signal low, the plug is under the engine in all the oil and salt and junk may need to get a pigtail and solder it in, or the wires go right by the pass side exhaust manifold, and could be melting
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Old 05-21-2014, 10:19 PM   #4
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Moved to Truck/ SUV thread.
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