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  1. Raja Sharma
  2. Second Hand Cars
  3. Tuesday, April 28 2020
Dear Admin,
Greetings of the day to you. I have watched several videos in Youtube referring to check blow back compression by unplugging dip stick in diesel engine. If engine oil is coming out of the dip stick unit then there is problem with the engine. In a particular video they have even unscrewed the engine oil filling cap. And engine oil started spilling. As I understand the tippets are working and oil may split through the oil filling cap. Is it the right way to check the engine. Kindly suggest the correct method.
Thanks and regards,
S.Raja.
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Hello,

blow back compression by unplugging dip stick in diesel engine. If engine oil is coming out of the dip stick unit then there is problem with the engine.

Yes - this is a straight away method to check if there is a problem. But is only an indicative and may not be 100% related to an issue with Car engine. Like if PCV Valve gone kaput then one may find the issue happening, its an inexpensive repair which may cost just rs 1000

Its best to get compression test done provided car acceleration also been impacted, get piston rings inspected to find the issue
The best way thus is to get it inspected at workshop,


  1. more than a month ago
  2. Second Hand Cars
  3. # 1
Raja Sharma Accepted Answer
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Okay, Positive Crankcase Ventilation. (PCV)
Thanks.


  1. more than a month ago
  2. Second Hand Cars
  3. # 2
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