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howard
Dodge Dakota
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7/05/2009
14:40:22

Subject: Oil Sending Unit ?
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When the truck warms up ( 6-7 minutes at idle ) the oil light on the dash starts to flicker. It seems like it is keeping rythem with the spark of a plug wire. Except when I put the truck in R or D the light stops flickering and stays on steady until I bring the RPMs over 2000. The pressure indicater is not affected just the idiot light. The sensor at the back of the intake manifold has 2 wires, one runs the idiot light and the other is for the pressure gauge. Both wires run to the gauge in the instrument cluster. If there is an electrical short where could it be? I replaced the gauge with a brand new one after the old one broke, Cause they are a cheap design. Why would the idiot light come on if the truck is not losing oil pressure. It maintains the same smooth idle and doesn't make the noises generally associated with low oil pressure or lack of oil. Every indication is some kind of short BUT WHERE could it be. I aint real smart, but I can lift heavy things and I follow directions real well. So someone point me to where I might find my problem. Thanks



daddio
Dodge Dakota
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7/05/2009
18:41:38

RE: Oil Sending Unit ?
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The best thing to do is get a mechanical gage and check the pressure with that to eliminate any engine problems. Yoou say you changed the gage but, what about the sending unit?



Max
Dodge Dakota
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7/05/2009
19:19:14

RE: Oil Sending Unit ?
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What year?
What engine?



howard
Dodge Dakota
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7/05/2009
20:45:45

RE: Oil Sending Unit ?
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My mistake, I changed the sending unit, not the gauge. The truck is a 1994 Dakota 5.2L V8 with somewhere around 75,000 miles on this engine. The check engine light flashes codes 45,37, and 21. All issues which should cause the check engine light to stay lit and since it does not stay on then these codes should clear after 50 restarts, Correct?? I thought that I could clear the trouble codes by disconnecting the battery ground for a few minutes. But this isn't working on these. 45 is Transmission Overdrive Solenoid circuit, 37 is torque converter clutch solenoid CKT, and 21 is the o2 sensor. I have no idea what the CKT stands for so if anyone knows nows your chance. It aint in any of the books I been lifting. Hope I don't have to enroll at Wyotech to find out, I'm too old for new tricks. thanx



well
Dodge Dakota
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7/06/2009
01:49:18

RE: Oil Sending Unit ?
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Howard to clear the codes
Disconnect the neg terminal
get in with the neg off
turn key all the way into cranking position
hold it there for 30 seconds
then go back out put the terminal back on
get back in
start the truck (do not touch the gas pedal)
let it idle for 30 seconds shut it off
repeat this 2 more times
any stored codes will be cleared
if your still getting codes
the issues were not fixed



howard
Dodge Dakota
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7/06/2009
15:19:55

RE: Oil Sending Unit ?
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Thanks Well!! Guess I aint too old after all..Now if I only knew what that CKT stands for I'd be the smartest guy I know. Guess its not that important anymore since the codes are now cleared. But what to do about that friggen oil sending unit. Does Autozone rent a tool that I can check oil pressure with? Maybe I should call them and ask? I SO SMRT. Smart makes me need a nap. Hope I don't wake up with drain bamage...



daddio
Dodge Dakota
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7/06/2009
15:25:22

RE: Oil Sending Unit ?
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I think CKT may stand for CranKshafT position sensor.



well
Dodge Dakota
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7/06/2009
18:05:17

RE: Oil Sending Unit ?
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where did you come up with this CKT ???



stevedak
Dodge Dakota
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7/09/2009
20:01:19

RE: Oil Sending Unit ?
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Daddio gave you the best advice, use a mechanical gauge to get an accurate oil pressure reading...and don't drive it until you do this. When you rev the engine, the pressure goes up, but when the light flickers, you actually have low pressure, most likely at idle. Don't look for a short, look for the real problem.



well
Dodge Dakota
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7/09/2009
21:01:25

RE: Oil Sending Unit ?
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am I the only one missing this?
He said the truck is a 94
94's only give codes in numbers
How did he come up with letters?

CKT ?




Kowalski
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7/10/2009
08:30:21

RE: Oil Sending Unit ?
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On another thread, he says he used a DRB scan tool. He should check with DRB, as I'm not sure Chrysler's code list includes that abreviation.

I hope howard and some of the other guys can see how it creates confusion when they start new related threads and abandon the original ones. He said he'd report back on the other thread, but didn't.
You could see better help if you don't leave people guessing about info that is already out there. Second guy I've seen do that this week.

Lead, follow, or get out of the way

daddio
Dodge Dakota
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7/10/2009
08:46:31

RE: Oil Sending Unit ?
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"37 is torque converter clutch solenoid CKT"

"37" is the code, the CKT was just in the description.



well
Dodge Dakota
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7/10/2009
09:11:18

RE: Oil Sending Unit ?
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thank you daddio



howard
Dodge Dakota
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7/13/2009
02:41:07

RE: Oil Sending Unit ?
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I started a different thread to address the "CKT circuit" because this thread was intended to get help with the oil sending unit, Hence the SUBJECT: OIL SENDING UNIT!!! Either way I still have not solved the mystery of the "CKT circuit". And yes the codes on a 94 are numbered and the explanaitions that follow contain words. My problem with the oil sending unit has been corrected by replacing the oil pump. As for the codes 37 & 45 they have not reappeared since I cleared the computers memory. It is not important for me to determine what the CKT circuit is or what it does because appearantly its no longer a problem on my truck. I was curious what the hell this mystery circuit was and I may be back on here in the future for more help which is always available and very usefull. I would like to say thanks to those of you with the knowledgeable responses to my questions your responses have led to resolving many problems for not only myself but others as well. Until my next post...Thanks all....



stevedak
Dodge Dakota
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7/16/2009
06:38:32

RE: Oil Sending Unit ?
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CKT stands for circuit. Scan tools give you a combination of manufacture's description and their own abreviation. None of them use perfect english. CKT is a common abreviation for circuit.



dtaylor21
Dodge Dakota
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1/25/2012
08:52:41

RE: Oil Sending Unit ?
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I have a 94 Dodge dakota v8 4x4 , and
when I stop the oil gauge will drop also
there is a ticking noise, the truck wasn't
very maintained, could it just gunk in the
filter or oil pump or oil pressure sending
unit. I need help



00dakdan
Dodge Dakota
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1/25/2012
11:25:30

RE: Oil Sending Unit ?
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It's normal for the oil pressure to drop some when you stop. It shouldn't tick though. That indicates the oil pressure may be very low.

Start off with an oil/filter change. You may want to run 10w-30 in it.



daddio
Dodge Dakota
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1/25/2012
20:57:49

RE: Oil Sending Unit ?
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As I posted a couple of years ago on this same thread "The best thing to do is get a mechanical gage and check the pressure with that to eliminate any engine problems."



Ltipto1
Dodge Dakota
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1/26/2012
13:25:37

RE: Oil Sending Unit ?
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I recently changed my oil pressure sending unit for some of the
same reasons others have described in this thread. (Low pressure
indication at idle while in drive, with flickering idiot light.) I was
worried that I had a bad engine on the truck I recently bought.
(1992 Dodge Dakota 5.2L) Lucky for me, the only problem was the
sending unit. Changed it, and everything looks great!



Randy
Dodge Dakota
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7/14/2019
09:50:23

RE: Oil Sending Unit ?
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Wire snapped off my oil sending unit on my 04 dakota 3.7,
where does it attach on the the fender.



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