Engine/Transmission (1998.5 - 2002) 2nd Gen Trany Upgrade Not Replacement....

[flattracker]

SNOKING read all of the threads you posted there the same as the stuff you and YNOT are trying to push a mythical TSB that supposedly causes this problem but no tsb # and no facts to support it. Go to page 8J 26 of the factory manual it explains the operation of the oil pressure gauge in detail if you read it you will find if the pressure is between 8. 5 lbs. and 80 lbs. the gauge reads ACTUAL pressure if below 8 lbs the pcm will take the needle to 0 light the check gauges indicator and sound a chime. If the pressure is over 80 lbs. the pcm wil take the gauge to 7. 4 degrees below the high end of the scale and hold it there until the pressure falls below 80 psi and then will read ACTUAL pressure . The only time the pressure will be over 80 psi is on cold start up do you think knowing your oil pressure is acually 93 psi instead of 80 psi is useful information ? The reason for this is for every increase in the range of a gauging system there is a corresponding decrease in accuracy . Think of it this way a yardstick has a much larger measurement range than a micrometer but is much lesss accurate . Thats an extreme case but I hope it makes the point. I hope this clears things up some on this gauge issue.

 

[flattracker]

SNOKING to add to the above post if you have an oil pressure gauge that goes to 40 or 45 psi and never moves you have a defective component either sending unit, pcm or instrument cluster not because thats the way dodge designed it to work. If the gauge receives no signal from the pcm it just stays at the pressure of the last signal it received . If your truck is doing this take it back and make them fix it . It is not a design flaw it is a defective component if they don't understand that you need to find another dealer.

 

[SnoKing]

No mine still works like a gauge! Well sorta if you read how the computer tells it what to display, and can cheat on the low and high end of things. But as others have posted theirs reads 40 lbs all the time after a visit to the dealer. Maybe the dealers have special oil the always maintains 40 lbs of oil pressure, hot/cold, slow or fast on the road. SNOKING

 

[flattracker]

You consider turning on a light and bell when the oil pressure has fallen below 8 lbs. an unsafe level cheating? Could have something to do with the term idiot light.

 

[flattracker]

AS for the 40lb. oil I gave the facts at lenghth why that was caused by a defective component not poor design if you don't agree fine post the facts to the contrary not just the post of someone who has also adopted the same misconceptions as you and it somehow makes it true because you both believe it.

 

[nps]

flattracker - the TSB is:



TSB 09-001-01



Don't know exactly what the reflash does.



I thought this was a transmission thread.



I vote for 3 pedals.

 

[flattracker]

Thanks for the TSB # I will check in to it. Your right I have helped in taking this thread way of track my apologies.

 

[DieselMinded]

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