No oil pressure for 3-4 seconds after starting

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Is this normal? #ad
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Maybe it just the way the sending unit is set-up. Alls I know is that it bugs me. Never had a vehicle take so long to register oil pressure. Any feed back would help me know if I should be concerned or be relieved because it is normal.

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99 Quad Cab, LWB, 4x4, 5-sp,fully loaded except cab lights and leather, Stainless Nerf Bars, Pro-flap mud flaps, Rhino liner, Raven Cap (cap high), Amsoil through-out.

Things to come,
Power Edge in the mail, should have it this week #ad
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, 285/75r16 next month, Hadley horns, CB setup, and many more BOMBing tools!!

[This message has been edited by BIG BOB (edited 06-20-2000). ]

 

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<font color=blue>3 to 4 seconds for oil pressure to register is how mine works. And I have been told by the members here at the TDR that it is perfectly normal.

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• Eric D. Howard - #ad
  - BOMB'er! - #ad
  - Member since April 8th, 2000
• 2001 Dodge Ram 2500 HD 4x4 SLT Auto Reg cab Cummins Turbo Diesel 4. 10 gear ratio LT265/75R/16 tires
• Patriot Blue Pearl Coat, Agate interior, Leather seats EVERY option - Coming next week Rhino bedliner
• In the VERY near future Power Edge Box(here),PowerEdge "other" product when available,DD Stage III(A)'s (probably August), JRE 4" Exhaust(coming in July), and Autometer Ultra-Lite Boost and Pyro Gauges(here)
• transmission soon to have a new Torque Converter and Valvebody good for 400HP!?!(coming mid July)

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[This message has been edited by KatDiesel (edited 06-20-2000). ]

 

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I sure scares ya the 1st time but nothn' to worry about.

 

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THAT'S HOW MINE WORKS TO

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2000 3500 2x4 5 speed all aptions expt
leather va box for power

[This message has been edited by Joe Kilburn (edited 06-20-2000). ]

 

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It's normal. The reasoning I've been told is because the pressure you see is actually averaged over a few seconds -- so you don't see the pressure until it has enough data to calculate the average.

 

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Mine does it too. I just wait a few seconds to see oil pressure before driving off.

Chris

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'01 3500 QC 4x4 SLT, Dk. Garnet Red, tan interior.
Cummins ETC, 5-speed, 3. 54 anti-spin; Line-X
BOMBed! Power Edge module, Auto Meter boost and pyro
gauges on A-pillar; Valentine One
Kenwood TM742 tri-band Ham Radio VHF/UHF/6M & GPS
APRS Tracker N5CWM-2
My 2001 Cummins Ram modifications website

 

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Yup, just like everyone else, it appears to be normal or what we call WAD (Working As Designed) It bugs me too. It really bugs me when I see people starting up their trucks or cars and before the engine is even at RPM, they are already in gear driving off. People have no patience.

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OWNER (ORDERED 1/20/00)2001 QC SLT SWB ETH, 6SP, Sport, etc. etc.
IMD 3/7/00

 

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Mine is that way too. PCM's are wonderful for that.

 

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Hi Big Bob,
Try this. Before you do a cold start, roll the window down or leave the door open. Then hit the starter. Engine starts. Listen to the engine closely. You can hear when oil pressure comes up. Engine noise decreases. Mine takes about 1 second. Gauge takes longer to register.

Turbo-6

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99 3500 Reg Cab, Red, 2wd, 5spd, 4:10
(2) 87 GN's (Also turbo 6's)

 

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Big Bob

That seems normal, my pressure doesn't come up until all the check lights have gone out for the second time.

BYW didn't I see you had a PE coming... If you need help testing it I'll be glad to cross the state line... #ad
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Bear

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'01 Black 4X4 Sport SLT QC, 3. 54, Auto, Camper & Travel Group, CD, PowerSeat, MAAP nerf bars, MOPAR mud flaps, Line-X, MOPAR Bug Shield

 

[Archive]

Big Bob

That seems normal, my pressure doesn't come up until all the check lights have gone out for the second time.

BYW didn't I see you had a PE coming... If you need help testing it I'll be glad to cross the state line... #ad
#ad


Bear

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'01 Black 4X4 Sport SLT QC, 3. 54, Auto, Camper & Travel Group, CD, PowerSeat, MAAP nerf bars, MOPAR mud flaps, Line-X, MOPAR Bug Shield

 

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Bear834

Come on over, I'm sure that after it gets here (this week hopefully) I will be doing alot of testing. Come over and help me give everyone at TDR an accurate report on its performance. I'm also in Spokane 2 to 3 day a week. Let's get together and find some PSD to BLOW away!! #ad
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99 Quad Cab, Long box, 5-sp, 4x4, 3:54's LSD, Fully loaded except Cab lights and leather, Stainless Nerf Bars, Raven Cap (cab high), Rhino liner, Pro-flaps mud flaps, Valentine One, Amsoil throughout.

Power Edge on the way, this week I hope, Cooper 285/75R16 next month, and many more BOOMing toys to come.

[This message has been edited by BIG BOB (edited 06-21-2000). ]

[This message has been edited by BIG BOB (edited 06-21-2000). ]

 

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Big Bob

Let me know when your around I can usually get away any time and I'll meet you somewhere for coffee or a new truck or some parts..... #ad

 

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When taking private pilot's lessons, the first thing you're trained to do after starting the engine is to look over at the oil pressure gauge and not do ANYTHING until you're up to safe pressure.

I always assumed that my Cummins didn't HAVE any oil pressure until the pump had a chance to come up to speed and pressurize. I don't think the gauge is lying, and I don't think it's an issue of averaging input. Until the motor has been running for a second or two, you simply don't have any pressure to report!

FWIW - I idle my truck for 10-15 second before pulling off anyway. I have a habit of always looking over the oil pressure and voltmeter before taking off - good habits for a lifetime of happy motoring. #ad


Greg



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Y2K Dodge Cummins QC 2500 SLT Laramie 4x4 Long Bed, 4. 10/Auto, Forest Green/Driftwood, 265x75R16 Michelin LTX, 6 speaker CD, Camper/Tow/Plow Packages, Westin Black Nerfs, Mopar bedliner, Ultra bright diamondplate toolbox, K&N Filtercharger.

Not Bombed yet!

 

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According to trusted and knowledgeable people at my dealer, you most certainly do have almost instant oil pressure after startup. The delay in the guage is controlled by the body module. The delay is neccessary because the initial startup pressure is higher than the guage can read. The slow rise in pressure reading is a result of a time delay R/C in the circuit which dampens needle bounce. This high pressure also showed up in early 24 valves as burst oil filters. The delay is normal, but it sure scared me the first time I started my truck!

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'99 QC SLT 4X4, Forest Green, long box, camper/trailer pkg, 3. 55 axles, auto, CD/cassette, power seat, heated mirrors, HD xfer case, Two meter Radioshack ham transceiver (license KC7MME),Proud member of the vast right wing conspiracy!
'98 Arctic Cat 300 4X4 ATV
'00 Honda Recon ATV
'99 Grand Cherokee
NRA Life member