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Miss fires through the intake

Tiny
SUHAYL
  • MEMBER
  • 2007 OPEL CORSA
  • 4 CYL
  • FWD
  • MANUAL
  • 214,000 MILES
I have a Bakkie 1.4i she just swings and miss fires through the intake. The timing is in order what else could it possibly be?
Saturday, October 1st, 2016 AT 12:59 AM

7 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hey SUHAYL,

I would remove all spark plugs and do a compression test, then remove the valve cover to see if you have any broken valve springs.

Here is a few guides to help

https://www.2carpros.com/articles/how-to-test-engine-compression

and

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

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

Best, Ken
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Tuesday, October 4th, 2016 AT 10:45 AM
Tiny
SUHAYL
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  • 4 POSTS
Hi there thanks for the help but nothing wrong with the valves or springs is it a possibility the rockers or lifters could cause that?
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Tuesday, October 4th, 2016 AT 11:02 PM
Tiny
KEN L
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Yes, with the ignition dissembled crank the engine over to see if each rocker moves up and down. If not you may have a flat camshaft.

Best, Ken
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Wednesday, October 5th, 2016 AT 9:55 AM
Tiny
SUHAYL
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  • 4 POSTS
Check everything new cam different rockers and different lifters problem presists any other ideas?
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Wednesday, October 5th, 2016 AT 10:51 AM
Tiny
KEN L
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Does the car have any trouble codes can you scan it it see what it shows?
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Wednesday, October 5th, 2016 AT 9:12 PM
Tiny
SUHAYL
  • MEMBER
  • 4 POSTS
That's the funny thing scan the car no fault code pertaining the misfire.

Prior to the vehicle cutting out the engine light came on when the vehicle speed was above 100km/h and when you slow down pass 100km/h she goes back off
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Thursday, October 6th, 2016 AT 5:10 AM
Tiny
KEN L
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It now sounds like it could be the timing chain has jumped. Does the engine sounds normal when cranking over. Can you perform the compression check?
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Thursday, October 6th, 2016 AT 9:30 PM

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