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Why do I need to heat the glow plugs every time I start, even when the engine is warm?

Tiny
JOSHBZ
  • MEMBER
  • 2004 NISSAN FRONTIER
  • 50,000 MILES
I have a adopted QD32t diesel engine in a four door Nissan frontier which use to have a 2.5 diesel engine. I always need to wait for the glow plug light from the dash to turn off for it to start quick, every time I start, even during the day when the engine is warm. Or else it would crank many times before starting.
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Monday, November 21st, 2011 AT 1:28 AM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Glow plugs are a must when starting either hot or cold. The only difference is the time they are left on. That is determined by the controller. The prechambers must be certain temps for your quick start up.

Roy
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Monday, November 21st, 2011 AT 2:48 AM
Tiny
KENLABE
  • MEMBER
  • 1 POST
Same problem here, it takes at least 10 secs before the glow plug warning light turns off and only by this time will it start quickly. It was not like this before so I assume this is really not normal.
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Wednesday, September 12th, 2012 AT 10:25 AM

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