Druk Press Problem?

Alex973 · Alex973's Garage

folks why is the druk pressure jumpimg? i have 1983 car with 84 3.2L engine. anything to do with that? is there a write up on this
please help

regards

h20cooled7 · 05-08-2007, 04:51 PM

when does it jump

Eagledriver · 05-08-2007, 08:56 PM

If the guage is jumping while driving there are several possible reasons. There could be a loose wire or loose ground connection. There could be a bad sender. You could have too low of an oil level and be sucking air into the oil pump.

-Andy

tcar · 05-09-2007, 11:27 AM

Jumping all the time? Jumping in time w/ turn signal?

BTW, 'Druk' means 'Pressure' in German, so you're being redundant in 2 languages...

Alex973 · Alex973's Garage

I know sir, jumping when engine starts, and staying above 140
when RPM at 800. where it should be at about 40-60 psi

masraum · 05-09-2007, 11:57 AM

yes, be a little more clear/detailed about your symptom. Andy has probably hit the nail on the head, but it's hard to say for sure since it's not 100% clear what you are experiencing.

Eagledriver · 05-09-2007, 06:08 PM

When the needle pegs high like you describe the usual problem is a loose/broken wire causing an open circuit.

-Andy

Alex973 · Alex973's Garage

thanks Andy. i will try ckng. the wires, the wires are from 3.2L
Carrera, and my car is 83 SC. where there is a 6 pin connector
and lot's of ground wires is where i saw the problem. will tell you the outcome

regards

Formerly Steve Wilkinson · 05-10-2007, 05:48 AM

Actually, "druck" means pressure in German. "Druk" doesn't mean anything in any language.

nhromyak · nhromyak's Garage

I just went through this on my '85.

I had a jumping needle and then it would peg at high end of 5.

I replaced the sender without actually testing anything (dumb ol' me). That was a PITA.

I still had the jumping needle. At first I thought my grounds on the gauge were bad. My ground was going to the oil temperature gauge and I found I had an open circuit from the ground on the pressure gauge to the guage backing plate.

OK - long story short. Where the individual gauges (oil pressure, and oil temperature gauge) ground to the gauge backing plate had corroded. I cleaned these up with some 600 sand paper. I put the grounding wire on the oil pressure gauge and now it works as expected!

I would pull the connector from your pressure sender and see if it bounces around on startup with ohms to ground using a mechanical VOM. If it is nice and smooth, then check the grounds on the gauges.

Good luck.