[Vwdiesel] glow plug test

Roger Brown r.c.brown at ieee.org
Mon May 2 20:30:03 EDT 2005


mikitka wrote:
> Just wanted to see if I was doing this correctly. I have a 10 amp battery
> charger, I hooked the neg up to the body of the glow plug and the pos up to
> the terminal end. When I turned on the charger nothing happened, this was
> with all 4 glow plugs. From what I can tell they were good because the car
> started right up before I took the head off. Is there something I'm not
> doing right?
> 
> Nick

That is how I check mine, writeup and pictures below:
	http://www.4crawler.com/Diesel/CheapTricks/GlowPlugs.shtml#GlowPlugTesting

You might check the charger to see if it has a current limit on it, hook it to the battery or a 12V light and see if it'll draw 
some current that way.  Or for the acid test, just click the two clamps together.  My charger will make a nice spark when you do 
that and the meter pegs.  If the charger won't drive the plugs (they do pull a bit over 10A cold), then try powering them with a 
pair of jumper wires off the battery posts.

-- 
    Roger



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