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Gary
Gary, Australia Car Mechanic
Category: Australia Car
Satisfied Customers: 745
Experience:  Senior Technician
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Holden Colarado: 08 Colorado hard starting and crankshaft fault.

Customer Question

08 Colorado hard starting and crankshaft fault. New sensor fitted and new camshaft sensor as well. ECU has been sent away and tested. O,K. Can not clear crankshaft code. Hard to start and when started very fueled smell, and no power. Have checked wiring to sensor all good. Do these have a common fault??
Submitted: 1 year ago.
Category: Australia Car
Expert:  Gary replied 1 year ago.
Hi there,RC Colorado 4JJ1 engine. Does the engine crank fast enough? Have you checked cranking voltage, must not go under 9.5-10v.Have you checked crankshaft endfloat?If you say the ECM is ok, the wiring for the crank sensor is ok, and the sensor is new and fitted correctly, the only thing left is the reluctor wheel is not being picked up by the sensor.Can you please tell me the crank sensor DTC you are getting?Gary
Customer: replied 1 year ago.
code P0335. Crank volts are10.5+ cold engine. This code will only clear when key on/engine off. As soon as the engine is started code appears and will not clear when engine is running.
Expert:  Gary replied 1 year ago.
Is this a manual transmission? Has it had a clutch recently? Have you checked the crank for excessive endfloat?P0335 is no signal.You have done continuity end to end on all three wires for the crank sensor, and no short to ground or voltage on any of them?Be aware while doing a test that moving the harness to different location may take the fault away, if the fault is within the harness.Here's another 4JJ1 doc I found:http://www.service-engine.com.ua/webroot/pdf/ISUZU%20ELF%204HK1%204JJ1%20Engine.pdfGary
Expert:  Gary replied 1 year ago.
Hi again,How have gone with this problem?Gary

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