Engine stall when reach 1300 RPM

Tiny
GLUMAC
  • MEMBER
  • 2004 MAZDA 6
  • 2.0L
  • 4 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 200,000 MILES
Engine stall when reach 1300 rpm, but only for half a second, immobilizer lights turn on for few seconds, check engine light just blink and then engine run normal. Engine still have enough power and everything is normal. And again when car is not moving, engine runs normal, it start normal. When accelerate and again reach 1300 rpm engine stall (seems to loose electric) and runs normal when get above 1300 rpm. Runs normal when rpm dropping to idle. I also notice when I accelerate very slowly thats not happening very often. If I accelerate quickly engine stall always at same 1300 rpm. Car is 2004 Mazda 6 diesel 2.0 100kW.
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Friday, December 16th, 2016 AT 1:28 PM

7 Replies

Tiny
KEN
  • ADMIN
Hey GLUMAC,

This sounds like a classic alternator problem, do this, disconnect the alternator wires makes sure they do not touch ground, than take the car for a drive to see if the problem goes away.

Let me know what happens.

Best, Ken
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Tuesday, December 20th, 2016 AT 10:40 PM
Tiny
GLUMAC
  • MEMBER
Dear Ken,
thank you and I am sorry that it took me so much time to try this. I disconnect alternator and it is still the same. Also when it is very cold outside (-15 C) engine runs better but not every time. I tried to sent you video to see what is really happening but it will not accept mp4 file. Please send me another email on which I can reply.
Best, Glumac
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Monday, March 6th, 2017 AT 9:39 AM
Tiny
KEN
  • ADMIN
Can you upload it to Youtube and send me the link?

That would be best,

, Ken
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Wednesday, March 8th, 2017 AT 2:55 PM
Tiny
GLUMAC
  • MEMBER
https://www.youtube.com/watch?v=_33s1SJisWY
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Thursday, March 9th, 2017 AT 10:05 AM
Tiny
KEN
  • ADMIN
Thanks for the video, that is an electrical problem, I would try disconnecting the alternator to see if you have a diode out which is throwing AC voltage at higher RPM's next check the battery connections including the grounds tot he engine and frame, next, I know it sounds weird but try another battery and finally it might be the computer has gone bad. It is a weird problem for sure have not seen that one before.

Please let us know what you find so it will help others.

Best, Ken
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Thursday, March 9th, 2017 AT 11:08 AM
Tiny
JWIN9569
  • MEMBER
I am having the same exact problem only difference is theirs still a miss when idling.
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Tuesday, March 21st, 2017 AT 2:54 AM
Tiny
KEN
  • ADMIN
Hey JWIN9569,

Can you please start a new question?

Best, Ken
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Wednesday, March 22nd, 2017 AT 11:52 AM

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