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Username Post: Oil pressure sensor        (Topic#357300)
fuzz1957 
Contributor
Posts: 585

Loc: NE IA
Reg: 02-18-08
07-20-19 08:36 AM - Post#2771141    

2005 GMC 5.3 will 81,000. Oil pressure gauge has gone to 80 psi. Looked on internet and seems to be a common occurrence - sensor goes bad. Not too hard to change. ? 1. Driving it this way shouldn’t cause any problems other than not having correct reading? Can I just drive it and ignore sensor/gauge, take my chances? ? 2. There’s a filter below oil pressure sensor. Does that need to be changed too?

Fuzz

MAGA




 
fuzz1957 
Contributor
Posts: 585

Loc: NE IA
Reg: 02-18-08
10-29-19 03:13 PM - Post#2779075    
    In response to fuzz1957

I take it that the questions asked are too hard?

Fuzz




 
Matt 
Moderator
Posts: 7817
Matt
Loc: SAV
Reg: 09-26-01
10-30-19 12:11 PM - Post#2779131    
    In response to fuzz1957

Ah, wrong forum, I'm moving it. This was in the '07+ trucks





Edited by Matt on 10-30-19 12:13 PM. Reason for edit: moved to 99-06.

 
junkman104 
Frequent Contributor
Posts: 1495
junkman104
Age: 60
Loc: Murphy N.C.
Reg: 01-25-14
10-30-19 05:39 PM - Post#2779157    
    In response to fuzz1957

The sending units fail, Yes change it. No the filter gets changed next oil change.



 
george88gta 
"16th Year" Silver Supporting Member
Posts: 2014
george88gta
Loc: new york
Reg: 04-23-03
10-31-19 04:22 AM - Post#2779182    
    In response to junkman104

https://www.rockauto.com/info/42/926-040-007__ ra_p...

There is a filter, in the block, directly under the sender. Fits in the hole for the sender. If it is easily accessible, I would change it as well.
I have to admit, I have never seen one installed in an engine, could be model year specific, but if one is there, it is probably a good idea to replace it.



Edited by george88gta on 10-31-19 04:29 AM. Reason for edit: No reason given.

 
junkman104 
Frequent Contributor
Posts: 1495
junkman104
Age: 60
Loc: Murphy N.C.
Reg: 01-25-14
10-31-19 05:46 PM - Post#2779247    
    In response to george88gta

Oops I read it wrong, I'm with George and never seen one as well.



 
wreckmech 
Member
Posts: 239

Loc: Parsippany, NJ
Reg: 10-08-02
11-02-19 03:15 PM - Post#2779391    
    In response to junkman104

There is a small filter under the sending unit. Most people miss it, and therefore it never gets changed. I've seen them plugged with so much sludge that there is no pressure reading at all. I don't know if you can get them aftermarket, or not. I went to the stealership for the last one I needed.



 
george88gta 
"16th Year" Silver Supporting Member
Posts: 2014
george88gta
Loc: new york
Reg: 04-23-03
11-02-19 04:09 PM - Post#2779395    
    In response to wreckmech

They are available aftermarket and some senders come as a kit, sender and filter.



 
wreckmech 
Member
Posts: 239

Loc: Parsippany, NJ
Reg: 10-08-02
11-03-19 12:19 AM - Post#2779420    
    In response to george88gta

Nice to know. The last one I did was 4, or 5 years ago. The engine had so much sludge that the oil galleries were plugged completely. There was no oil pressure reading at all....The bearings were almost completely disintegrated when I tore it down.

The owner was not happy, to say the least. I later found out he had only changed his oil once in 7 years..."to save money"...Needless to say, he now changes his oil regularly.



 
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