2001 Volkswagen TDI Glow Plugs

2001 VOLKSWAGEN JETTA TDI
110,000 MILES • 4 CYL • FWD • MANUAL
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SPARK515
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  • 1 POST
Is there a way to tell which glow plug is bad? The local car tech told me that I had one that was bad.
Jun 22, 2010 at 10:35 AM
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DR LOOT
  • ✓ASE Certified Mechanic
  • 2,311 POSTS
  • ASE Certified Mechanic
take your test light and hooked it to the + (positive) side of the battery, NOT the -- (negative) side, then with your test light check each glow plug, Individually if the light turns on the glow plug is good, if the light does not turn on the glow plug is burned out, it only takes one glow plug burned-out to make it hard to start.
Jul 19, 2010 at 8:57 AM
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