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'05 Chevy TB EXT
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Yeah I already priced the ignition coil from Rock Auto... will order it tomorrow after work... Also Ravalli, Its kind of hard to trust the advise from someone who suggested to drill a hole in my muffler/cat converter...
I didn't say drill a hole in your cat. If you get the test kit, it has full instructions to drill a small hole in the pipe just ahead of the cat and read the pressure there after you install the special fitting.

THEN --- after the test, they provide a nice small screw to close it back up again.

MOST people own a drill ---- not too many people have the sensor socket nor know how to use it.

It was a suggestion to save you some money and even though you believe I told you to drill into the cat --- I did not.

BTW --- as a CARB/CalEPA Brake-Lamp-Emissions Inspector for over 50 years for the State of California and as an inspector-installer-adjuster and friend of the court --- that drill/screw kit is safe, legal and cheap.

I'm outta here --- listen to "people" with "lots of experience" and anecdotes ..... just do what you want......
 

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2004 chevy trailblazer_lt
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GreaseGirl, a couple of things.

First, the P1345 DTC IS NOT for "Electrical Short: Ignition Coil Output Stage 3" as you stated. P1345 is for a Camshaft To Crankshaft Position Correlation Fault, which goes along with a bad VVT Solenoid and the P0014 DTC.

So, perhaps you do not have a defective ignition coil (especially since you do not mention either a P0300 or P0303 code being present).

Second thing. Please use a decent quality 5W30 motor oil along with a decent oil filter. I would not use a 10w30 oil because the VVT is designed for a 5w30 oil and the operation of the VVT solenoid is dependent upon clean 5w30 motor oil, not 10W30. By the way, almost every motor oil today (except for the never heard of brands sold at some convenience stores) meets the oil specification for the TrailBlazer 4.2 engine. So, go to Walmart and purchase pretty much any oil from Walmart's SuperTech 5w30 to Mobil 1's most expensive 5w30, and either a SuperTech, Fram, Purolator, ACDelco, or Wix filter and you'll be just fine.

Good Luck!
 
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Discussion Starter · #23 ·
So tried driving the trailblazer to work and its still bogging really bad on hills and stuff, not even steep ones, im talkin like... 15 degree at the most...
 

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2004 chevy trailblazer_lt
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Do you have a listing of the current OBDII codes? Also, is the Reduced Power light illuminated on the instrument panel?
 

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Discussion Starter · #25 ·
Do you have a listing of the current OBDII codes? Also, is the Reduced Power light illuminated on the instrument panel?
I cleared the codes yesterday so I am waiting for the computer to catch up and stuff... It did give a P0420 and a P0014 but thats it... I am not seeing a diminished power light on my dash, just the ABS light and that my ebreak is engaged (even though its not, I need to adjust/replace the parking break pads)
 

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2004 chevy trailblazer_lt
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Thanks. Did you see my earlier post to you about the ignition coil?
 

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2004 chevy trailblazer_lt
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OK, but your coil may not be bad. Did you get either a P0300 or a P0303?????
 

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'05 Chevy TB EXT
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Good grief!

Unfollowing........
 

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I do not know what OBD II code reader you are using, but the definition shown for P1345 is incorrect.

Here is a link to a website that explains what P1345 means :


If you want just google this - 2003 Trailblazer P1345 for yourself and see that the code reader you are using is wrong.
 

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Discussion Starter · #32 ·
I do not know what OBD II code reader you are using, but the definition shown for P1345 is incorrect.

Here is a link to a website that explains what P1345 means :


If you want just google this - 2003 Trailblazer P1345 for yourself and see that the code reader you are using is wrong.
So I know I had to replace the VVT solenoid but I was told that I wouldnt have to re-adjust the camshaft position with the broken solenoid...
 

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2004 chevy trailblazer_lt
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That is true.
 

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Based on the information you have provided, the problem(s) you are experiencing are all related to the camshaft system. I say that because of two of the three DTCs you are getting (P1345 and P0014). Also, the P0420 DTC (catalytic convertor efficiency is below threshold) could also be the result of the problem with the camshaft system.

If you have not already done so, go ahead and replace the VVT solenoid. While you are at it, look at the electrical connector that plugs into the VVT solenoid. Make sure the wires are intact,and that the side that goes into the VVT solenoid is clean. If it is not clean, use some rubbing alcohol to clean it.

Now, find the camshaft position sensor and look over the wires going to it. Make sure the wires are intact going into the connector body itself. Remove the connector from the camshaft position sensor and make sure the part that goes into the sensor is clean. If not, clean it using some rubbing alcohol.

If any of the wires going into the VVT Solenoid or the camshaft position sensor are loose, broken, etc, then you'll need to get a replacement connector and splice it in place of the old connector.

OK, now clear the codes and drive around and see if either the P1345 or P0014 codes return. If either code comes back, I would then replace the camshaft position sensor. They do go bad from time to time.

If only the P0420 code remains, drive the TrailBlazer on the highway to see if it stays or goes away. If it goes away, then you are all set. If the P0420 code is still there, remove the the Oxygen sensor that is before the catalytic convertor (it's mounted in the exhaust manifold) secure the loose Oxygen sensor and then drive around and see if the engine runs better and is no longer sluggish. If the sluggishness is gone, you have a catalytic converter that is partially plugged and will only get worse, so it will need to be replaced.

If the sluggishness is still present, please report back for more guidance.

Either way, please let us know how it is going.
 

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Discussion Starter · #36 ·
I already replaced the VVT and its connector is completely fine... I will look at the camshaft position sensor once I figure out where its and and check its condition
 

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OK. The sensor is essentially located on the front of the engine on the passenger side just to the right of the radiator hose at the engine. It can be easily broken when removing the radiator hose from the engine if one is not careful. I know. I busted mine changing hoses.
 

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