220 miles oil pressure gone HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!

[diesel DOG]

I picked up my truck the other day and went for my for my first trip to Conn. The alarm went off to check guages. I scaned them and saw 0 oil pressure. I pulled over and checked the oil and for leaks, It seemed OK. The truck sounded fine. I restarted the truck and had some oil pressure 20 lb. @ 60 MPH. The guage bad?

 

[Cummins Corvette]

New sender should take care of it.

 

[JR2]

The service manager at the dealership where I bought my truck said that he has never seen a cummins diesel that did not have oil press when it was full of oil, no matter what the gauge showed. Told me that if I see 0 oil press to pull over and check oil, if there is oil in the engine to not worry about it and come in for a new sender when I had time.



I know of a couple people who have had to have new senders, I believe that there is also a computer reflash that fixes the problem when it is not the sender.



So drive on and take it to your dealer after the holidays and get it fixxed.



By the way, I would demand service right now, when you call be angry and demand that they fix it that day. Make them give you a loaner car for the time it takes. You have a brand new truck and deserve all this.

 

[Ram4Sam]

Not to worry

Dog, I had this same problem a couple of weeks ago. There is TSB#09-001-01. They replaced the sending unit and did a reflash. All is fine since then.



Sam ** Look here www.dodgeram.org/tech/tsb/2001/09-001-01.htm

 

[Texas Diesel]

DONT GET THE PCM REFLASH!! I did and I sure am sorry I did. DC requires the dealers to do the reflash first before troubleshooting the sender. The reflash tells the PCM to ignor an out of range signal from the sender and put 40 PSI on the gauge.

I took it back complaining of a constant 40PSI being indicated and after a call to STAR to get permission to check further. They found the sender to be faulty. Now I have a new sender and a PCM that will ignor it if it ever reads 0PSI again. Basically I have no oil pressure warning system due to the reflash!!!!!!

 

[Steve St.Laurent]

I have heard from a trusted source that the newer trucks (not sure when this starts) do exactly what you're talking about Texas Diesel. D/C had so many cases of sender's going bad and so few actual oil pump failures that the ECM just displays normal oil pressure based on other engine parameters!! I about fell over dead when I heard about it! This is the first time I've heard that a reflash does the same thing - but that doesn't surprise me .

 

[Texas Diesel]

Steve, trust me on this one. I requested that the mechanic start the engine with the new sender, a three wire (grounded through the plug) affair hanging in mid air and my dash gauge read 40PSI WTF DC?

 

[Ram4Sam]

Ain't that a pisser!

Dang Texas, way to burst my bubble! Actually, my gauge seems to read like it did before. Same few seconds after start up showing no pressure, rises and falls with rpm's. But I think you are correct as my pressure at hot idle seems a little higher. When I picked up my truck after the flash only, it read the same at idle as it did at 3000 rpm, 40 lbs. After new sender and flash, it moves again but surely isn't accurate anymore. On my 99 POSPSD the oil gauge(idiot gauage?) always read the same, hot of cold, fast or slow. Thanks to the idiot at Chrysler for this one!!!



Hey Steve or admin, how about a section for bonehead TSB's like this one where we can post bad expieriences such as this so others can avoid them?



Sam

 

[diesel DOG]

It seemed to work fine on the way home. Ijust need the cold weather start reflash now.