# Oil Sending sensor **URL:** \ **Category:** General Discussion\ **Tags:** chevrolet, blazer\ **Created:** [March 27, 2023, 12:23am UTC](https://community.cartalk.com/t/oil-sending-sensor/189791 "2023-03-27T00:23:43Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![McDLTS](https://avatars.discourse-cdn.com/v4/letter/m/8e7dd6/32.png) [@McDLTS](https://community.cartalk.com/u/McDLTS)\ **Post date:** [March 27, 2023, 12:23am UTC](https://community.cartalk.com/t/oil-sending-sensor/189791/1 "2023-03-27T00:23:43Z")
My Blazer has blown the oil sending sensor 3 times in the last 4 months. PLEASE does anyone know why this keeps happening??? ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [March 27, 2023, 12:33am UTC](https://community.cartalk.com/t/oil-sending-sensor/189791/2 "2023-03-27T00:33:34Z")
The only thing I would wonder about is the source of the parts or maybe high oil pressure. Pretty simple devices though. ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [March 27, 2023, 1:11am UTC](https://community.cartalk.com/t/oil-sending-sensor/189791/3 "2023-03-27T01:11:35Z")
You need to use a mechanical oil pressure gauge to see your oil pressure is with in specs… It would be nice if we knew if you are working on a 1970 Blazer or a 1994 Blazer or a 2019 Blazer and what engine… Where are you buying the parts from??? You could be dealing with a bad production batch of sending units or even junk AZ ones… There is a number of reason that can cause high oil pressure, did you just change your oil right before this started happening?? Could be a defective oil filter, or clogged from not changing the oil filter… Could be the oil pressure relief valve is stuck in the oil pump… ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [March 27, 2023, 1:34am UTC](https://community.cartalk.com/t/oil-sending-sensor/189791/4 "2023-03-27T01:34:00Z")
I’d guess cheap parts… but that is a wild donkey guess since you did not tell us squat about your car. ---
**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\ **Post date:** [March 27, 2023, 1:39am UTC](https://community.cartalk.com/t/oil-sending-sensor/189791/5 "2023-03-27T01:39:07Z")
What happens? What does “blown” mean here - what does your oil gauge or oil pressure warning light do that it shouldn’t be doing? Is this sender a simple on/off device or one that has a range of resistance? Is there a problem with the wiring that may be grounding or opening the circuit when it should not be? ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [March 27, 2023, 4:25am UTC](https://community.cartalk.com/t/oil-sending-sensor/189791/6 "2023-03-27T04:25:51Z")
> [@Mustangman](#): > > I’d guess cheap parts… but that is a wild donkey guess since you did not tell us squat about your car. There is something to that . . . A coworker kept having problems with replacement parts on his personal vehicle . . . until he stopped buying Autozone house brand parts and started buying reputable quality parts