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Discussion Starter · #1 ·
Howdy!

New guy here, from Richardson, Texas!

I recently picked up a 2006 CTS-V.

It needed quite a bit of work when I picked it up last month, but I got it for the right price (cheap). Its got the Hurst short throw shifter and straight piped exhaust.

So far I've done:
Clutch pedal position switch​
Front struts​
Front upper control arms​
Spark plugs and wires​
Skip shift eliminator​
Engine mounts​
Transmission mount​
Harmonic balancer​
All fluids​
Drive belts​
Fixed various connectors (thanks PO!)​
To do:
Catalytic converters​
Drive shaft flex joints and center carrier​
Deep clean!​
Excited to be here with one of my dream vehicles!

151092


151093
 

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Welcome to the forum. :) I'm new myself. There's lot's of good info here so, dig in.
 
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Welcome!


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Discussion Starter · #7 ·
Thanks ya'll!

Now Im trying to figure out an intermittent no crank issue. Id say its a 40% chance my car will actually crank when turning the key.

I've replaced the starter and the connector that goes to it which made it actually crank more often, but still not great.

I noticed that the battery isnt the correct battery, so I will be replacing that soon. Otherwise, I have no idea what it could be at this point. Maybe possibly leaning towards the ignition switch as well? Pretty over it at this point so Ill more than likely be taking it to a shop for proper diagnosis, but hoping someone here may have some insight. :)
 

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Battery now, then post up here.
 

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Clarification needed: What does “crank” mean to the O.P.?


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When the car is in its “failure mode”, is it turning over but failing to start, or is it not rotating at all? (Not cranking).


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Discussion Starter · #11 ·
By no crank I mean the engine doesn't turn over/rotate at all.

For this issue I've done the following:
Repaired the starter solenoid connector​
Replaced starter​
Replaced starter relay​
Tried jumping it with a jump pack​
Bypassing the starter relay with a wire works every time.

The only light in the dash that is illuminated while the key is in the start/crank position is the CEL.
 

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Thanks for the detail. It's good info.
<<Bypassing the starter relay with a wire works every time >>
This says that it's not the battery, the starter, the solenoid or an engine ground issue.

It doesn't pinpoint anything, but narrows a bit.
  1. starter relay itself
  2. Brake pedal switch
  3. ignition switch
  4. theft deterrent (there's a TD module inside the steering column)
  5. fob detection(??)
More things that I haven't thought of... but my best guess is number 2.
 
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Discussion Starter · #13 ·
Thanks for your thoughts! Definitely helps clear things up in my head a bit.

I may try another starter relay just for S&Gs.

The owners manual doesn't mention having to hold the brake in order for it to start - only the clutch pedal.

Wonder what the best way to test the ignition switch would be.

I don't believe its the theft deterrent since I can still remove the key without any issues and there are no indicator lights on for it either, but who knows.

Will hopefully have a better update soon :D
 

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Change #2 to clutch... I forgot it was a V1... just assumed AT.

I drive a 6MT V2....and at this moment I don't actually recall if it requires the brake to be depressed. I'll have to make a point to notice.
EDIT: only the clutch
 

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Discussion Starter · #15 ·
Ah got ya! The clutch pedal switch was replaced as it was bad when I purchased this thing. Will need to figure out how to test it as well.
 

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Discussion Starter · #16 ·
The shop I ended up taking it to is pointing to the clutch pedal position switch. I guess the $20 AC Delco one I got from Amazon is faulty. They have a genuine GM replacement on the way. I'll be installing when I get a chance.
 

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Discussion Starter · #17 ·
Still waiting on the Clutch pedal position switch to get in.

Now Im getting 'Service traction control soon' message, TC light is on and wont turn off, and the brakes are dragging very slightly. Brake fluid is black, so hoping a brake fluid change will resolve. One of the few fluids that I have yet to change.
 

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Good deal! Glad you got it sorted
 
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