Vehicle not wanting to start after timing belt replacement - Holden Technical Talk

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Fastlane » Holden Forums » Holden Technical Talk » Vehicle not wanting to start after timing belt replacement

Vehicle not wanting to start after timing belt replacement - Starting issue RG Colorado

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Birderc1		#1 Posted : Monday, 23 September 2024 6:06:55 PM(UTC)
Rank: Newbie Reputation: Groups: Registered Joined: 23/09/2024(UTC) Posts: 2		Hello, I have a Holden RG Colorado 06/2012. Just did a timing belt replacement, everything went smoothly with it. Once we reassembled everything the vehicle did not want to start (it would crank though). Disconnected the Camshaft position sensor and the vehicle started. Plugging in the sensor again the vehicle did not want to start. Tested the sensor and it was working but to be sure it was replaced and the issue still occurs. Seeking guidance on what to do


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Smitty2		#2 Posted : Monday, 23 September 2024 8:50:16 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 6/07/2019(UTC) Posts: 384 Location: bayside Melbourne Thanks: 238 times Was thanked: 28 time(s) in 28 post(s)		Originally Posted by: Birderc1 Hello, I have a Holden RG Colorado 06/2012. Just did a timing belt replacement, everything went smoothly with it. Once we reassembled everything the vehicle did not want to start (it would crank though). Disconnected the Camshaft position sensor and the vehicle started. Plugging in the sensor again the vehicle did not want to start. Tested the sensor and it was working but to be sure it was replaced and the issue still occurs. Seeking guidance on what to do check the sensor ground and harness to it... something screwy in the electrics here
		Club circuit racing...the best fun you can have with your pants on


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Birderc1		#3 Posted : Monday, 23 September 2024 8:54:59 PM(UTC)
Rank: Newbie Reputation: Groups: Registered Joined: 23/09/2024(UTC) Posts: 2		Checked the ground to the sensor and it seemed to be ok. Starting to suspect maybe something hasn’t “synced” since the timing. Not sure what else to test for.


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Dr Terry		#4 Posted : Tuesday, 24 September 2024 11:12:11 AM(UTC)
Rank: Veteran Reputation: Groups: Moderator, Registered Joined: 1/03/2005(UTC) Posts: 6,064 Thanks: 1 times Was thanked: 203 time(s) in 184 post(s)		My guess is that the cam timing is slightly out. The ECU can see that & won't let it start. Disconnect the cam sensor & it cannot see that the timing is out, so then it starts. Dr Terry
		If at first you don't succeed, just call it Version 1.0


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