How to locate, check and fix sending unit/pressure switch due to blinking oil light? - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
 
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post #1 of 5 (permalink) Old 02-21-2010, 11:46 AM Thread Starter
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Question How to locate, check and fix sending unit/pressure switch due to blinking oil light?

Oil light is blinking, oil level is fine. Doesn't appear to be sludgy. I want to check the pressure but when I looked under the motor to find the sending unit I could see one that had a white wire running from it. I need clarification on where and which place to hook up to. If the pressure is fine what indicates a good pressure? Should I replace the sending unit? oil pressure switch? oil pump? The book I bought didn't have but one picture, black and white wasn't that helpful. Thank you for any feedback!
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post #2 of 5 (permalink) Old 02-21-2010, 12:04 PM Thread Starter
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Figured I would add there seems to be more than normal amounts of oil build up on the bottom of the engine. I don't want to automatically assume an oil leak but.... what do you think?
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post #3 of 5 (permalink) Old 02-23-2010, 05:03 AM
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I hope this helps you but I had the same issue with my intrepid and only 36,000 miles on it. I had the mechanic do an oil pressure test to make sure that the oil pump is working right. Then I had to install a part from dodge that will fix the issue with the oil light either coming on either all the time or when at idle. My mechnic also replaced my oil sending unit because it was defective. Now I don't have that oil light coming on anymore. Below are the details you'll need and you can get the part at most dealerships Id suspect. If needed you can get the part from weRmopar.com, they seem to be very reputable and give good deals. Good luck and let me know how it whent

NO: 08-36-99
SUBJECT: Engine Oil Pressure Light Flicker
OVERVIEW:
This bulletin involves adding a terminal/wire/vent to the oil pressure switch connector.

NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 2.7L ENGINE.

SYMPTOM/CONDITION:
With a hot engine the oil pressure light may be on or flicker on at idle.

DIAGNOSIS:
Verify engine oil pressure as described on page 9-21 of the 1999 Concorde/Intrepid/LHS/300M service manual. If engine oil pressure is within specification perform the Repair Procedure.

PARTS REQUIRED:
Qty Part No. Description
1 05017800AA Wire Terminal/Vent


REPAIR PROCEDURE:
Raise vehicle on a suitable hoist.
Remove engine oil pressure switch connector from switch.
Remove sealing dart from the empty cavity at the rear of the connector.
Pull terminal locking ring outward from front (switch) side of connector to gain access to terminal locking tabs.
Install wire terminal/vent, p/n 05017800AA, in place of the removed sealing dart. Slide locking ring back into place.
Attach the connector back on the oil pressure switch.
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post #4 of 5 (permalink) Old 02-23-2010, 08:44 PM Thread Starter
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Cool

Quote:
Originally Posted by leeangelo View Post
I hope this helps you but I had the same issue with my intrepid and only 36,000 miles on it. I had the mechanic do an oil pressure test to make sure that the oil pump is working right. Then I had to install a part from dodge that will fix the issue with the oil light either coming on either all the time or when at idle. My mechnic also replaced my oil sending unit because it was defective. Now I don't have that oil light coming on anymore. Below are the details you'll need and you can get the part at most dealerships Id suspect. If needed you can get the part from weRmopar.com, they seem to be very reputable and give good deals. Good luck and let me know how it whent

NO: 08-36-99
SUBJECT: Engine Oil Pressure Light Flicker
OVERVIEW:
This bulletin involves adding a terminal/wire/vent to the oil pressure switch connector.

NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 2.7L ENGINE.

SYMPTOM/CONDITION:
With a hot engine the oil pressure light may be on or flicker on at idle.

DIAGNOSIS:
Verify engine oil pressure as described on page 9-21 of the 1999 Concorde/Intrepid/LHS/300M service manual. If engine oil pressure is within specification perform the Repair Procedure.

PARTS REQUIRED:
Qty Part No. Description
1 05017800AA Wire Terminal/Vent


REPAIR PROCEDURE:
Raise vehicle on a suitable hoist.
Remove engine oil pressure switch connector from switch.
Remove sealing dart from the empty cavity at the rear of the connector.
Pull terminal locking ring outward from front (switch) side of connector to gain access to terminal locking tabs.
Install wire terminal/vent, p/n 05017800AA, in place of the removed sealing dart. Slide locking ring back into place.
Attach the connector back on the oil pressure switch.
Thank you for that! We actually switched the switch which fixed the blinking. However, the light stayed on after she warmed up. Then a faint knocking noicse at the front of the engine started. Soooo... this could be a couple of things. I would like to get the car into a garage to see how much it's going to cost to fix it but not sure how I can do that. The car is located an hour and half away from me.
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post #5 of 5 (permalink) Old 02-24-2010, 12:27 AM
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Well I hope its not too late to save that engine. Depending on how much it will cost Id say do the engine swap if you really love the car and it would be too much to repair the 2.7. The 3.2 and 3.5 are great engines. Get the 3.5 for more power. My car only has 37,000 and Im already having issues with it which is dissapointing. Hopefully I can get it to run right with no issues soon.
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