2002 Z06 erratic oil pressure
08-25-2018, 01:52 PM
#1
Drifting
Thread Starter
Member Since: Jul 2003
Location: Orlando FL
Posts: 1,613
Likes: 0
Received 0 Likes
on
0 Posts
2002 Z06 erratic oil pressure
Replaced the oil pressure sending unit 6 months ago. Added the manual gauge under the hood. Driving today and the “service engine soon” indicator came on at a stop light. Oil pressure dropped to zero, then immediately bounced over 40. Climbed to 80. Then fell to 20. Then normal while driving. Basically it’s all over the place. I couldn’t jump out fast enough to check the manual gauge under the hood. No odd noises or smells. Other temperatures stayed normal.
Can a failing pump jump the pressure around that fast? I’m assuming it’s another bad sensor. Glad I relocated it.
Thoughts?
Can a failing pump jump the pressure around that fast? I’m assuming it’s another bad sensor. Glad I relocated it.
Thoughts?
08-25-2018, 02:12 PM
#2
Zen Vet Master Level VII
Yes, I'd bet on the sensor. If the pump went... you know it. Any time you have an analog gauge jumping about, you can guess that the sending unit is wonky.
Now, with the needle jumping I bet you have a loose wire as the sending unit is being grounded/un grounded in rapid susseccion. If your wires are clean/secure, swap the sending unit.
Now, with the needle jumping I bet you have a loose wire as the sending unit is being grounded/un grounded in rapid susseccion. If your wires are clean/secure, swap the sending unit.
08-25-2018, 03:46 PM
#4
Drifting
Thread Starter
Member Since: Jul 2003
Location: Orlando FL
Posts: 1,613
Likes: 0
Received 0 Likes
on
0 Posts
Can’t believe it failed again after only 6 months. But I’m glad I relocated it to make the change easy.
Ill take a look at the connection and see if there are issues there.
I just didnt want to overlook the possibility of a failing pump.
Pressure was good for a 2 hour highway drive just before this started happening.
Ill take a look at the connection and see if there are issues there.
I just didnt want to overlook the possibility of a failing pump.
Pressure was good for a 2 hour highway drive just before this started happening.
08-25-2018, 07:06 PM
#5
Administrator
Member Since: Mar 2001
Location: In a parallel universe. Currently own 2014 Stingray Coupe.
Posts: 343,487
Received 19,454 Likes
on
14,055 Posts
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-
'20-'21-'22-'23-'24
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Moved to C5 Tech.
08-25-2018, 07:19 PM
#6
Instructor
Can’t believe it failed again after only 6 months. But I’m glad I relocated it to make the change easy.
Ill take a look at the connection and see if there are issues there.
I just didnt want to overlook the possibility of a failing pump.
Pressure was good for a 2 hour highway drive just before this started happening.
Ill take a look at the connection and see if there are issues there.
I just didnt want to overlook the possibility of a failing pump.
Pressure was good for a 2 hour highway drive just before this started happening.
08-25-2018, 09:19 PM
#7
Drifting
Thread Starter
Member Since: Jul 2003
Location: Orlando FL
Posts: 1,613
Likes: 0
Received 0 Likes
on
0 Posts
It was whatever brand comes with the relocation kit and manual gauge offered by TPE, I believe. I have no problem springing for a Delco unit. I just hope that the rest of the kit lasts longer than the sender.
10-10-2018, 08:08 PM
#10
Melting Slicks
Well I, for one, want to extend a big thanks for bringing this to the conclusion. More data -- complete data at that! -- that will work when/if I have a similar problem. Well done!