Question about 2005 Chevrolet Silverado 1500HD
Do you hear lifters ticking? Or knocking inside the engine? Do these sounds change with engine RPM? If you don't hear them it is likely a sending unit, if you do then it could be the oil pump. Either way, you need to hook a mechanical oil pressure guage to the engine to confirm which is the problem. If the guage shows normal pressure then the problem is the sending unit. If it doesn't then you need to look further and this would best be left to a professional.
I would be very reluctant to drive this until you confirm which one is the problem because if it is indeed the oil pump even a short drive can ruin the engine. Hope this helps.
Posted on Mar 12, 2011
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Posted on Jan 02, 2017
The oil pressure sending unit is located behind the oil filter, Threaded into an aluminunm housing. It has wiring that plugs into the sending unit. The oil filter has to be removed and you will need a deep well socket and a 6 inch extension. Change the oil and the sending unit together.
Posted on Feb 02, 2009
SOURCE: oil pressure sending unit
Your looking foer the oil pressure sensor on the 2004 8.1L.
You will find it located directly behind the EGR valve threaded into the block just to the drivers side of the center bolt for the transmission to block connection.
Posted on Mar 17, 2009
The pressure sending unit is located on the passenger side rear of the engine just above and slightly to the left of the filter and filter housing.
Posted on Aug 01, 2009
hi the only problem driving it is not knowing ? its located on the front surface of the drivers side cylinder head near/next to oil filter hope this helps if so please rate it
Posted on Nov 20, 2009
if you have the 5.2 V8 its located in the rear of the engine near the dist cap area you can see it if you look in that area , if 4.0 6 cyl its located on the side of the engine block near the oil filter area. It has two wires going to it and screws into the block. It's made mainly of plastic and if broken can allow oil under pressure to spew out and give you thoughts of a blown rear main seal due to the amount of oil all over the underside.
Posted on Dec 09, 2009
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