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Excess gas in the cylinder head of Mazda 626

Tiny
MZMAMP23
  • MEMBER
  • 2001 MAZDA 626
  • 143,000 MILES
Head was fixed, head gasket was replaced, timing was set accurately, gas is getting in the cylinder head some kind of was even with gas lines unhooked
Tuesday, October 11th, 2011 AT 10:01 PM

9 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check if the injectors are leaking-investigate thoroughly
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Tuesday, October 11th, 2011 AT 10:09 PM
Tiny
MZMAMP23
  • MEMBER
  • 8 POSTS
How should I go about doing that?
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Tuesday, October 11th, 2011 AT 10:30 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Remove the fuel rail
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Tuesday, October 11th, 2011 AT 10:54 PM
Tiny
MZMAMP23
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  • 8 POSTS
Thanks so much
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Tuesday, October 11th, 2011 AT 11:00 PM
Tiny
MZMAMP23
  • MEMBER
  • 8 POSTS
No injectors are leaking, he said that gas was not running through the injectors when he pulled the fuel rail back up
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Tuesday, October 11th, 2011 AT 11:11 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Is this with the key On
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Tuesday, October 11th, 2011 AT 11:19 PM
Tiny
MZMAMP23
  • MEMBER
  • 8 POSTS
I dont think it was with the key on, should he try it that way? If the injectors are leaking should I just get a new engine/car or replace the injectors?
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Tuesday, October 11th, 2011 AT 11:26 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
If the injectors are leaking, replacing them would do. It is much cheaper and easier than replacing the engine.
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Wednesday, October 12th, 2011 AT 4:52 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
If injectors are leaking only with key on, it is not the fault of the injectors. Check the engine computer and its grounding circuits.

You mentioned gas getting to the cylinders with gas lines unhooked, that does not seem right. Please reconfirm.
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Wednesday, October 12th, 2011 AT 4:54 PM

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