1993 Dodge Caravan oil pressure

Tiny
BMXVAN93
  • MEMBER
  • 1993 DODGE CARAVAN
1993 Dodge Caravan Two Wheel Drive Automatic 85000 miles

I have 1993 caravan. When i'm driving the oil pressure is where it noramally is suppose to be, but when I go to apply the brakes or let off the gas the pressure drops. What could cause that?
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Wednesday, February 3rd, 2010 AT 7:14 PM

11 Replies

Tiny
BMRFIXIT
  • EXPERT
Oil pressure switch should be replaced as a 1st step
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Wednesday, February 3rd, 2010 AT 7:19 PM
Tiny
BMXVAN93
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Do you know what the oil pressure should be for this van?
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Wednesday, February 3rd, 2010 AT 8:28 PM
Tiny
BMRFIXIT
  • EXPERT
What do you have for an engine size
check around the oil filter
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Wednesday, February 3rd, 2010 AT 8:37 PM
Tiny
BMXVAN93
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3.3
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Wednesday, February 3rd, 2010 AT 8:46 PM
Tiny
BMRFIXIT
  • EXPERT
On left side of cylinder block, next to oil filter
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Wednesday, February 3rd, 2010 AT 8:56 PM
Tiny
BMXVAN93
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Thank you we will change that tonight, but we were told to check the oil pressure in the van after it had warmed up to see if it is that piece or something else. What is the recommended oil pressure suppose to be? I found were that piece goes thank you.
Should we check to see what the pressure is before we change the piece, then change the piece and check it again?
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Thursday, February 4th, 2010 AT 8:42 AM
Tiny
BMRFIXIT
  • EXPERT
Need to have an oil pressure gauge set
to check oil pressure
remove oil pressure switch and install gauge set start and check pressure
if within spec oil pressure switch at fault
if low suspect oil pump
if do not have the gauge set
I would replace the switch
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Thursday, February 4th, 2010 AT 5:46 PM
Tiny
BMXVAN93
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Replaced the switch. The oil pressure registers higher than normal but is still all over the place. We are going to put the gauge on it today. Do you know what the pressure should be once the gauge is on (at idle). Thank you
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Sunday, February 7th, 2010 AT 12:02 PM
Tiny
BMRFIXIT
  • EXPERT
Oil Pressure
Oil pressure should be 5 psi (.35 kg/cm2 ) at curb idle and 30-80 psi (2.1-5.6 kg/cm2 ) at 3000 RPM with engine at normal operating temperature
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Sunday, February 7th, 2010 AT 2:52 PM
Tiny
BMXVAN93
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Read 65 psi @ 3000 rpm, but reads like around 22 @ idle.
Is that alright, or should I not run it. Levels are right on. Could it be the gauge on the dash?
Thank you so much for everything that you've helped me with
Michelle
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Sunday, February 7th, 2010 AT 6:17 PM
Tiny
BMXVAN93
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We also put in a new thermostat, water pump, pvc valve & new air filter. The gauge on dash still moves all over up & down (with the oil pressure).
Then when you go to pull up to a light or stop sign the heat turns warm/cold. Then once you apply to the gas it turns warm/hot. What could be causing this problem?
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Monday, February 8th, 2010 AT 7:41 AM

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