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Jeep Wrangler 4.0L

Tiny
DENTINO
  • MEMBER
  • 2004 JEEP WRANGLER
  • 6 CYL
  • 4WD
  • AUTOMATIC
Runs rough at idle, checked fuel preasure 45 psi. Cylinders have 160 psi except cyl #1 at 140 psi. New plugs and coil no vaccume leaks, and there is no check engine light and all obd monitors are set to ready. But it did burn a 1 qrt of oil in 3 days. This is a recent motor swap so if u could help would be great!
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Monday, February 21st, 2011 AT 1:53 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Do a leak down test on the low cylinder, this may be the cause of your oil loss if it is rings, how much of the original engine was swapped over, as in fuel system and sensors?

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Monday, February 21st, 2011 AT 2:00 PM
Tiny
DENTINO
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All sensors from the new motor were used. As well as just the injectors and rail everytheng else was from the original engine
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Monday, February 21st, 2011 AT 2:04 PM
Tiny
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If this motor was sitting for a while the injectors could be a bit sticky, if you can I would swap the injectors from original engine, if you don't have them, get yours serviced.

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Monday, February 21st, 2011 AT 2:07 PM

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