buckmoy Posted September 11, 2022 Share Posted September 11, 2022 Hi all Just had an oil change/service (main dealer) and a new sump installed (local garage). 54 plate GT with 110k on clock. Local garage was testing oil pressure with external unit, all good. However they said car's view was it was at zero, and oil light was on. So we installed a new sender, but didn't fix the problem. I let it sit for a few days. Did dashboard dial test, all OK. Started it up and pressure went to max. Then after driving for a bit went to normal, then after about ten mins went to zero. Car isn't losing oil. May be my imagination but it seemed to go to zero under (quite heavy) braking (then not return to normal). Not expecting a diagnosis, but wondering if anyone has had similar problems? Thanks Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted September 11, 2022 Share Posted September 11, 2022 1st step is to recheck the oil level when cold on a level surface. Quote Link to comment Share on other sites More sharing options...
buckmoy Posted September 11, 2022 Author Share Posted September 11, 2022 Hey Alex reading is about 30% between L and H on the dipstick. Quote Link to comment Share on other sites More sharing options...
buckmoy Posted September 17, 2022 Author Share Posted September 17, 2022 Well. Seems to have resolved itself. Maybe was the new sender getting settled. One day I just started the car and the oil pressure gauge went from zero to a normal cold oil starting pressure (100ish), then immediately down to something too low at idle for cold oil (15 ish), then up to 100 again, then has just been behaving normally. Quote Link to comment Share on other sites More sharing options...
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