ZZ Top Posted September 1, 2019 Report Share Posted September 1, 2019 Have a new engine with 14 hours in a 2006 CTSW. The previous oil pressure has been running between 60 & 70 lbs depending on the engine temp. Upon runup yesterday the pressure went to 100lbs, then went all the way up. Did not notice any difference in the sound of engine, when shut down pressure drops to zero. The oil pressure gauge is original with 600 plus hours. Has always been faithful. checked sending unit connections, ok No mechanic in the area, any suggestions will be appreciated. Quote Link to comment Share on other sites More sharing options...
Tom Baker Posted September 1, 2019 Report Share Posted September 1, 2019 If you have the VDO sending unit I would replace it. I have seen them fail with erratic readings, low readings, and high off the scale readings. Quote Link to comment Share on other sites More sharing options...
ZZ Top Posted September 1, 2019 Author Report Share Posted September 1, 2019 Thanks Tom. How do you know what type of sending unit you have? This is a fresh, out of the crate, engine with very few hours. Would it be covered under warranty? Quote Link to comment Share on other sites More sharing options...
procharger Posted September 1, 2019 Report Share Posted September 1, 2019 sending unit is fairly cheap not worth hassel warranty might be a pain to resolve. Quote Link to comment Share on other sites More sharing options...
Tom Baker Posted September 1, 2019 Report Share Posted September 1, 2019 The 3 most common oil pressure sending units are either VDO, Honeywell, or Kalvico. I'm not sure if the sender is supplied with a new engine. Quote Link to comment Share on other sites More sharing options...
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