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I replaced all 4 camshaft sensors and it still won’t start.

Customer Question
I replaced all 4...

I replaced all 4 camshaft sensors and it still won’t start.

Mechanic's Assistant: Which particular sensor are you asking about? And have any trouble codes been triggered?

Yes I got codes P0343, P0368

Mechanic's Assistant: What is the model/year of your Cadillac?

2008 SRX4 3.6L

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

Yes I’m fixing it myself. I have replaced the starter, battery, crankshaft sensor, all 4 camshaft sensors

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

It quit running while I was driving it. I had it towed home and replaced the things I mentioned.

Submitted: 1 month ago.Category: Cadillac
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Answered in 8 minutes by:
1/7/2018
Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago
David Craig
David Craig, Auto Mechanic
Category: Cadillac
Satisfied Customers: 4,742
Experience: Owner/Mechanic at 3D Automotive
Verified

Hi my name is ***** ***** I'll be more than happy to assist you, Please allow me a few minutes to review your information. Thank you.

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Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

these are circuit problems, not component problems. did you test anything before replacing them?

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Customer reply replied 1 month ago
No. Auto zone scanned it and the crankshaft sensor and camshaft sensors came back as faulty.
Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

I am telling you these faults are the wiring to the camshaft sensors.

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Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

I've been doing this a long time. Believe me.

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Customer reply replied 1 month ago
Could the PCM be bad? I guess ineed to test the wiring.
Customer reply replied 1 month ago
will the issue with the wiring cause the car to not start?
Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

A bad PCM is always a possibility but the wiring to bank 1 intake cam sensor and the wiring to bank 1 exhaust cam sensor has to be checked

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Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

yes these will absolutely cause a no start

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Customer reply replied 1 month ago
Check the wires for wear through or bad connection?
Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

continuity, power and ground

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Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

allow me to get you a wiring diagram

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Customer reply replied 1 month ago
Ok. Thanks!
Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

hows it going?

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Customer reply replied 1 month ago
A buddy came by today and we tried checking the continuity, positive and ground. We kept getting false readings. One time it would give us reading of a broken wire and other times it’s was fine. I have my mechanic coming by tomorrow to tell me what I need to replace. Thank you!
Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

Ok, just make sure before replacing anything, you prove that its bad. I don't like to see customers waste money on unnecessary parts.

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Customer reply replied 1 month ago
It ended up being the timing chain.
Cadillac Mechanic: David Craig, Auto Mechanic replied 1 month ago

ok, glad its figured out. it had to have jumped, timing chains dont cause too many issues.

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