3RZ Oil light coming on...why?
01-04-2009, 06:57 AM
#1
Registered User
Thread Starter
Join Date: Jul 2008
Location: GA
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
3RZ Oil light coming on...why?
My 96 Tacoma 4x4 is havng a weird problem. When I first start it in the morning, the oil ligh does not come on..nor does it come on until about 20 minutes int my commute..and then only at idle. If I give it some gas while idling, the light begins to flicker and then it goes off as the RPM's gradualy rise....any ideas?
01-04-2009, 07:07 AM
#2
Registered User
Join Date: Nov 2006
Location: Ohio
Posts: 321
Likes: 0
Received 0 Likes
on
0 Posts
could be a bad sending unit, or it could be your oil pump going, or your oil is too thin, or the oil filter.....
how long ago was it when you changed your oil last?
i would change your oil and put in a new sending unit, if it still does the same thing then hook up a mechanical gauge, if your oil pressure is getting to low then you need to find out why before you blow your engine.
how long ago was it when you changed your oil last?
i would change your oil and put in a new sending unit, if it still does the same thing then hook up a mechanical gauge, if your oil pressure is getting to low then you need to find out why before you blow your engine.
01-04-2009, 07:20 AM
#5
Registered User
Join Date: Dec 2007
Location: Hazzard County, Georgia
Posts: 433
Likes: 0
Received 2 Likes
on
2 Posts
Do you have a guage so you can see numbers ?
01-04-2009, 07:24 AM
#6
Registered User
Thread Starter
Join Date: Jul 2008
Location: GA
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
It just started....I am about to do the 02 front end swap so while I have the front end off I will replace both the pump and the sending unit..the oil pan is also leaking, so I guess I will drop the pan and clean the screen, replace the gasket while I'm in there.
Trending Topics
02-06-2009, 06:36 AM
#13
Registered User
Thread Starter
Join Date: Jul 2008
Location: GA
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
I never have...all the way from my 82 2wd, my 91 4wd, my 95 2wd, and now my 96 4wd, all had the 4cyl, and used the same number filter..PH3614! No problems..but I guess it wouldn't hurt to swap out once in a while.
02-06-2009, 08:03 AM
#15
Registered User
Join Date: Nov 2006
Location: Ohio
Posts: 321
Likes: 0
Received 0 Likes
on
0 Posts
02-06-2009, 04:51 PM
#16
Registered User
STOP THROWING PARTS AT IT.
DO SOME TROUBLESHOOTING.
Get a mechanical oil pressure tester. Hook it up and see what PSI your actually getting, not just what the gauge tells you. Refer to the FSM as to what the pressures should be at idle and at RPM.
DO SOME TROUBLESHOOTING.
Get a mechanical oil pressure tester. Hook it up and see what PSI your actually getting, not just what the gauge tells you. Refer to the FSM as to what the pressures should be at idle and at RPM.
02-06-2009, 08:33 PM
#17
Registered User
Thread Starter
Join Date: Jul 2008
Location: GA
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
Really not answering my question here...why does it say to remove the head to change the oil pump?
--also hooking up a gauge AFTER repacing the switch(and light still comes on) won't tell me if its the pump or excess bearing clearance..so I might as well "throw" a pump at it....
--also hooking up a gauge AFTER repacing the switch(and light still comes on) won't tell me if its the pump or excess bearing clearance..so I might as well "throw" a pump at it....
Last edited by project91; 02-06-2009 at 08:40 PM.
02-13-2009, 10:43 AM
#19
Registered User
Thread Starter
Join Date: Jul 2008
Location: GA
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
Fixed it!! Changed the pump, cleaned the screen, checked the high pressure relief valve operation, changed the oil pan gasket while I was in ther (duh) and fired it up, when it warmed up and the idle came down..it was pretty tense just waiting cuz I was gonna be pissed if the light came on, cuz then I just knew it was the bearings. But nope! NO LIGHT!! I now a gauge is better, but hey at least the thing is off!
02-13-2009, 11:45 AM
#20
Registered User
Join Date: Nov 2006
Location: Ohio
Posts: 321
Likes: 0
Received 0 Likes
on
0 Posts
Fixed it!! Changed the pump, cleaned the screen, checked the high pressure relief valve operation, changed the oil pan gasket while I was in ther (duh) and fired it up, when it warmed up and the idle came down..it was pretty tense just waiting cuz I was gonna be pissed if the light came on, cuz then I just knew it was the bearings. But nope! NO LIGHT!! I now a gauge is better, but hey at least the thing is off!
Thread
Thread Starter
Forum
Replies
Last Post
RedRunner_87
95.5-2004 Tacomas & 96-2002 4Runners (Build-Up Section)
84
06-01-2021 01:51 PM
