i have a 99 2500, the past two mornings the oil pressure falls and i get a chck guage light . it only does it when i come to a stop then it picks back up.this morning it stayed down longer ,maybe 10 seconds, then picked up.the pressure does fine the rest of the day. any suggestions would be appreciated.thanks

 

i might have found the answer in the 2nd gen section.....thanks

 

Check the oil first to make sure it's full. Then get a manual oil pressure gauge and check the pressure. The sending unit maybe going bad. A oil filter could also cause this. If all else failles when oil pressure is down at idle still it sounds like the main barrings are bad.

Rodney

 

I am having the same problem. where did you find that info precision151?

 

Replace your oil pressure sender and all will be well again.

 

200 bucks a whack for the sender. I am gonna be sure. Just installed a sunpro oil guage. Fingers crossed. ****ing sending units!!!!!

 

Ok Guys. i have the answer. I had the same problem for a year. Went through 3 new senders at 70 some bucks a whack. Never fixed it. I finally found out that the oem sender has a cut out in it that sends an alarm if the pressure drops below 20 pounds. mine must have driven me crazy for a year because I had a mechanical gauge in it that showed I had 25 pounds at idle. I finally found someone that told me cummins had a 0 PSI guage for it. I went to the dodge house and asked and lo and behold, they had it! Cheaper than at the cummins house. Fixed the problem! Dodge part number 56031005, lists for 44.88. This will cure the problem.