Who has had to replace their Cam. position sensor?
#1
Burning Brakes
Thread Starter
Who has had to replace their Cam. position sensor?
Just wondering who has had to replace their camshaft position sensor? How unreliable are those? I'm still trying to figure out why my car cranks longer than normal after it sits over night or at work for the day. I did a fuel pressure drop test yesterday and found that after 5 hours, the fuel pressure was 30 psi, and immediately when I turn the key on it goes to 55 as it should and fires up. C4C5 said on the Corvettemechanic website that it may be a bad camshaft position sensor... This is getting annoying for me.
Fuel pump check valve or cam position sensor? No PCM codes at all.
Fuel pump check valve or cam position sensor? No PCM codes at all.
#2
Tech Contributor
Member Since: Dec 1999
Location: Anthony TX
Posts: 32,736
Received 2,180 Likes
on
1,583 Posts
CI 6,7,8,9,11 Vet
St. Jude Donor '08
If the PCM is having issues reading or receiving CAM Sensor data, you would have DTC for that sensor.
Have you checked and cleaned your grounds??? Remember,,,thats FREE and can have a significant effect on how your car runs. I recommend doing that first. Heres my sticky on grounds. Hope it helps:
http://forums.corvetteforum.com/showthread.php?t=896875
BC
Have you checked and cleaned your grounds??? Remember,,,thats FREE and can have a significant effect on how your car runs. I recommend doing that first. Heres my sticky on grounds. Hope it helps:
http://forums.corvetteforum.com/showthread.php?t=896875
BC
#3
Instructor
Member Since: Oct 2002
Location: Palm Coast Fl
Posts: 178
Likes: 0
Received 0 Likes
on
0 Posts
I had to replace mine on the '02 Z06 @ about 2000 mi's and now @ 4000 mi's I'm ving the same code.
Someone told me they thought the problem might be the cam locking bolt as they've never seen a bad can position sensor go bad!
Anyone else with this problem???
Someone told me they thought the problem might be the cam locking bolt as they've never seen a bad can position sensor go bad!
Anyone else with this problem???
#4
Pro
Member Since: Jul 2000
Location: Suffolk New York
Posts: 589
Likes: 0
Received 0 Likes
on
0 Posts
I used the excuse to check the cam bolts to replace my cam. Turned out it was the sensor after all! I had about 50k miles on that sensor, so yes the least expensive remedy is first change the sensor, ( don't drive too much just in case it is the cam gear bolts!) if that doesn't cure the code then check the cam gear bolts and change your cam while you're in there!
Ooo just realized this is an old thread, sorry!
Last edited by cam99; 11-06-2007 at 10:35 AM.
#5
Tech Contributor
Just wondering who has had to replace their camshaft position sensor? How unreliable are those? I'm still trying to figure out why my car cranks longer than normal after it sits over night or at work for the day. I did a fuel pressure drop test yesterday and found that after 5 hours, the fuel pressure was 30 psi, and immediately when I turn the key on it goes to 55 as it should and fires up. C4C5 said on the Corvettemechanic website that it may be a bad camshaft position sensor... This is getting annoying for me.
Fuel pump check valve or cam position sensor? No PCM codes at all.
Fuel pump check valve or cam position sensor? No PCM codes at all.
#6
Racer
Member Since: Jun 2005
Location: Mendota Heights MN
Posts: 332
Likes: 0
Received 0 Likes
on
0 Posts
I just had the fuel feed pipe replaced for a hard starting issue. Apparently there is a check valve in the pipe that can stick partially open, resulting in symptoms similar to what you describe. Not sure where in the system it is located (dealer replaced under GMPP), but understand this to be not an uncommon problem.