Crank No Start

Thread Tools
 
Search this Thread
 
Old Mar 29, 2025 | 09:19 AM
  #1  
Hamboned1's Avatar
Thread Starter
|
Junior Member
Joined: Mar 2025
Posts: 9
Default Crank No Start

2007 Saturn Outlook 3.6 XE crank, no start , I replaced Both Front 2 Bank 2 camshaft sensors, that code cleared my scanner, now getting a tunning valve high voltage code P2078, will turn over but will not start
 
Old Mar 29, 2025 | 12:44 PM
  #2  
grcauto8453's Avatar
Senior Member
Joined: Jan 2024
Posts: 623
From: Davison, MI
Default

Why did we replace the sensors? What is the fuel pressure? How we testing for spark?
 
Old Mar 29, 2025 | 08:06 PM
  #3  
Hamboned1's Avatar
Thread Starter
|
Junior Member
Joined: Mar 2025
Posts: 9
Default

this Saturn had a lot of issues, when a friend brought it to me to work on , I 1st replaced flange exhaust gaskets on it cause it was running loud, then had to replace valve cover and sparkplug well gaskets, cause oil was leaking into the wells, I sucked out each well that had oil in it with shop vac, and replaced all sparkplugs and coil packs, then, it would not start, but I was getting a camshaft sensor code bank 2 sensor 2 so I replaced Both camshaft sensors on bank 2 since I had to take off motormount and coolant pipe to have access to the sensors and now it still will not start, it sounds like it wants to start after a few seconds of cranking but then it will not
 
Old Mar 30, 2025 | 08:31 AM
  #4  
Rubehayseed's Avatar
Senior Member
Joined: Jul 2011
Posts: 5,544
From: Anniston, AL
Default

Have you tried putting the old coils back on and trying it? Make sure the towers and wires are all clear of corrosion. Did you use OEM plugs or some sort of Chinesium trash? These vehicles run best with OEM parts, believe it or not. Remember the 4 components of ignition. Fuel, spark, air and compression. Have you run a compression test on it?
 
Old Mar 30, 2025 | 08:47 AM
  #5  
Hamboned1's Avatar
Thread Starter
|
Junior Member
Joined: Mar 2025
Posts: 9
Default

I did install oem plugs but the coil packs I got was online, I will try swapping back to old coil packs and see if it will help, I have not done a compression test on it yet
 
Old Mar 30, 2025 | 12:26 PM
  #6  
02 LW300's Avatar
Super Moderator
Joined: Apr 2015
Posts: 3,229
From: Willamette Valley, Oregon
Default

Did it run after replacing the vc gaskets, plugs and coils? Before replacing the cam sensors?
 
Old Mar 30, 2025 | 12:31 PM
  #7  
02 LW300's Avatar
Super Moderator
Joined: Apr 2015
Posts: 3,229
From: Willamette Valley, Oregon
Default

How did the chains look?

Timing Chain Problems
— These early models frequently encountered timing chain stretch and failure. Symptoms included engine misfires, poor performance, and rough idling.

To address this, GM extended the warranty on timing chains and updated the ECM software to improve oil life monitoring, reducing the likelihood of timing chain stretch. Regular oil changes with high-quality oil were also recommended to keep the timing chain well-lubricated and in good condition.

Oil Consumption — Excessive oil consumption was a significant problem, often caused by worn piston rings and valve seals. GM suggested using the correct oil grade and closely monitoring oil levels. They also implemented updated PCV valves to manage oil consumption more effectively.
 
Old Mar 30, 2025 | 07:11 PM
  #8  
Hamboned1's Avatar
Thread Starter
|
Junior Member
Joined: Mar 2025
Posts: 9
Default

Originally Posted by 02 LW300
Did it run after replacing the vc gaskets, plugs and coils? Before replacing the cam sensors?
it didn't run after i replaced VC gaskets, plugs and coils!
 
Old Mar 30, 2025 | 07:16 PM
  #9  
Hamboned1's Avatar
Thread Starter
|
Junior Member
Joined: Mar 2025
Posts: 9
Default

Originally Posted by 02 LW300
How did the chains look?

Timing Chain Problems
— These early models frequently encountered timing chain stretch and failure. Symptoms included engine misfires, poor performance, and rough idling.

To address this, GM extended the warranty on timing chains and updated the ECM software to improve oil life monitoring, reducing the likelihood of timing chain stretch. Regular oil changes with high-quality oil were also recommended to keep the timing chain well-lubricated and in good condition.

Oil Consumption — Excessive oil consumption was a significant problem, often caused by worn piston rings and valve seals. GM suggested using the correct oil grade and closely monitoring oil levels. They also implemented updated PCV valves to manage oil consumption more effectively.
the timing chains looked ok , but I definitely didn't check them thoroughly!
 
Old Mar 30, 2025 | 11:13 PM
  #10  
02 LW300's Avatar
Super Moderator
Joined: Apr 2015
Posts: 3,229
From: Willamette Valley, Oregon
Default

You need to go back before the vc gaskets. First thing is a compression check, how did it look under the covers? Was it clean or had it missed several oil changes? I bought an L with low even compression and was able to save it. The thing looked terrible under the cover due to many missed oil changes. The chain had just slipped enough to not run. It had not bent any valves yet. Need to see compression numbers to advise.
 



All times are GMT -5. The time now is 11:39 PM.