Mass air flow to motor

Tiny
MONTYNMERRI SIMPSON LIFERS
  • MEMBER
  • 1995 INFINITI J30
  • 0.5L
  • 6 CYL
  • AUTOMATIC
  • 265,000 MILES
The car turns over but coughs in a sense, like possible air leak. No compression. Upon digging around a bit I found the the boot/hose that goes into the motor has cracks long enough to allow air. Also there is another small outlet going to the motor from the same side (drivers) which is loose and actually came completely out. As opposed to the other side no cracks and the smaller tube is fixed and does not move.
Monday, March 4th, 2019 AT 8:42 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,055 POSTS
Hi and thanks for using 2CarPros.

If you have a cracked hose, it should be repaired. Yes, a vacuum leak will cause driveability issues. If the check engine light is staying on with the engine running, have the computer scanned for diagnostic trouble codes which may tell you exactly the problem.

Here is a quick video that shows how to scan an computer:

https://youtu.be/b2IJGfImVvw

I realize most people don't own a scanner, but most parts stores will do for free.

Next is a link that shows how to check for a vacuum leak.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

See if this helps or if you have other questions.

Take care,
Joe

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Monday, March 4th, 2019 AT 7:51 PM

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