2004 Rainier - Low Oil Pressure
#1
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2004 Rainier - Low Oil Pressure
I have an 04 Rainier with the 5.3L V8, just rolled over 100k miles.
Just started having a very quick low oil pressure alarm and seems to be running a little lower then normal as well. Idle and low load (1500 rpm) will read around 30 or so (use to be right around 40) and occasionally it will skip down to 20ish (alarm message on dash) and go right back up.
I had a low reading on my 05 Bonneville SLE (3800 V6) and replaced the oil pressure switch to correct it.
Does this sound like a probable cause on the Rainier? Where is the oil pressure switch located at on the Rainier and how easy to change / fix?
Thanks!
Just started having a very quick low oil pressure alarm and seems to be running a little lower then normal as well. Idle and low load (1500 rpm) will read around 30 or so (use to be right around 40) and occasionally it will skip down to 20ish (alarm message on dash) and go right back up.
I had a low reading on my 05 Bonneville SLE (3800 V6) and replaced the oil pressure switch to correct it.
Does this sound like a probable cause on the Rainier? Where is the oil pressure switch located at on the Rainier and how easy to change / fix?
Thanks!
#3
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Thanks for the info. I do not have a mechanical gauge to hook up and is why I was asking how easy changing out that pressure switch was, is only like a $40 part.
#8
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It might be the oil. When the oil gets old, even at 2000 miles, it loses the abiliy to build pressure. When old oil gets hot, the pressure drops even more.
How long has it been since an oil change?
How long has it been since an oil change?
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
#10
Retired
Change your oil first,(considering its due) and watch your pressure gauge again. If it returns back to normal, your fine. It was just the oil being old.
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel