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Overheat, RPM up and down, engine oil decrease

Tiny
HASHIM829
  • MEMBER
  • 2012 DAIHATSU MIRA
  • 3.0L
  • 3 CYL
  • 2WD
  • AUTOMATIC
  • 60,000 MILES
Sir, my car overheat, though there is no gauge of heat but its body and engine seems to be like fire. Engine oil I using is 20w 50, engine oil level on dipstick showing a level of half as I driven to 200 km approximately. Also, at idle position rpm comes down and when I increase rpm through pedal on idle, car switch off when I release paddle. Please help and advice where is the problem. Really helpful for your advice.
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Friday, May 19th, 2017 AT 7:12 AM

7 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

This sounds like a problem with the exhaust system being plugged. I would check the catalytic converter first.

Here is a guide that will help you see if that is the problem.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please let us know what happens.

Cheers, Ken
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Monday, May 22nd, 2017 AT 10:50 AM
Tiny
HASHIM829
  • MEMBER
  • 4 POSTS
Thanks for your reply Ken.I checked with mechanic and he said that its gasket blown.I placed new head gasket set, changed filter, new spark plugs. Now car pickup increase and no overheat issue, but it is giving same fuel average which was before, around 10km/l. How to increase fuel average?
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Tuesday, June 27th, 2017 AT 3:13 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Try disconnecting the battery for a couple of hours to see if the system resets. Then drive it for a while to see the new average.
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Tuesday, June 27th, 2017 AT 11:10 AM
Tiny
HASHIM829
  • MEMBER
  • 4 POSTS
Thanks Ken, will let you know.
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Thursday, June 29th, 2017 AT 12:17 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Please do :)
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Thursday, June 29th, 2017 AT 10:48 AM
Tiny
HASHIM829
  • MEMBER
  • 4 POSTS
On longe route, it is giving good mileage but not smooth ride, with same acceleration feel like someone apply brake and then again it picked acceleration, this happen time to time with same acceleration.
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Friday, June 30th, 2017 AT 1:06 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It almost sounds like you have an engine misfire. Here is a guide to help you confirm the problem and get it fixed.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Please let us know what happens.

Cheers, Ken
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Friday, June 30th, 2017 AT 10:52 AM

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