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#1
03-17-2007, 10:05 PM
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GP light does NOT glow...
when I first start up after it has sat in the garage overnight. I can drive it 5 miles down the road, stop the engine, go into the *mall* or *wherever*, get back in several hour later, restart and the light glows nicely
 . It will continue to function properly the rest of the day no matter how many times I turn it off / on!BUT, leave it overnight, and in the morning the same thing happens...NO glow light prior to starting  . Do I need to go through and ohm test all the gp's? Thanks for the replies.
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Dale 1995 E320 Wagon 185K [SOLD] 1988 260e Sedan 165K 2007 F-150 XLT 188K [SOLD] 2003 Harley Davidson FLTRI Anniversary 26K ----------------------------- 2006 BMW 330Ci 110K - [SOLD]
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#2
03-18-2007, 07:56 AM
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Anyone?
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Dale 1995 E320 Wagon 185K [SOLD] 1988 260e Sedan 165K 2007 F-150 XLT 188K [SOLD] 2003 Harley Davidson FLTRI Anniversary 26K ----------------------------- 2006 BMW 330Ci 110K - [SOLD]
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#3
03-18-2007, 09:29 AM
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I'd start by testing the glow plugs with an ohm meter. Takes ten minutes and that will at least tell you if you've got a bad glow plug(s).
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Len '59 220S Cabriolet-SOLD and living happily in Malta '83 240D 351,500 miles original owner-SOLD '88 560SL 41,000 miles - totaled and parted out https://sites.google.com/site/mercedesstuff/home '99 E300 turbo 227,500 miles '03 SLK320 40,000 miles - gave to my daughter '14 Smart electric coupe 28,500 miles '14 Smart electric cabriolet 28,500 miles '15 Smart electric coupe 28,000 miles 
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#4
03-18-2007, 09:39 AM
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It's possible you have a bad connection at one or more of the GPs that "closes up" when the engine is warm. How does it start when cold? Is it smooth or does it seem like one cylinder is missing?
Check all of the connections at each plug and tighten them if any are loose. Could also be the relay fuse but then you'd get no glow at all at startup and it would take lots of cranking to get it going from cold.
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Marty D. 2013 C300 4Matic 1984 BMW 733i 2013 Lincoln MKz 
Last edited by nhdoc; 03-18-2007 at 09:45 AM.
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#5
03-18-2007, 10:10 AM
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im thinkin maybe ur GP relay? wPhen i had a bad plug, my GP light still Illuminated, but when the GP relay went out, thier was no GP light.
just my 0.02
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1983 Euro 240D 277K 2016 Mazda 6 Coming Soon, 2013 Mercedes E350 Bluetec Formers: 2012- Mazda 3 2007 Outlander- complete pile 1995 E300 Diesel 208K 2007 VW Passat 2.0T  63K SOLD2003 Jaguar X-type 3.0 Sport Sold 04/11 w/88K 2009 Lexus RX350 9061 miles. Sold 04/09 2008 Mitsubishi Lancer GTS:Totaled Sept.,09 @ 24,000 2003 Infiniti I35 58K Sold 1984 300 turbo diesel 222K
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#6
03-18-2007, 03:35 PM
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Thanks to you all. I will test them and see what's going on with that.
I'll just need to blow the dust off the "testing GP with an ohmeter procedure" thread! 
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Dale 1995 E320 Wagon 185K [SOLD] 1988 260e Sedan 165K 2007 F-150 XLT 188K [SOLD] 2003 Harley Davidson FLTRI Anniversary 26K ----------------------------- 2006 BMW 330Ci 110K - [SOLD]
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#7
03-18-2007, 04:14 PM
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To test GP's, pull plug, one lead from ohm meter to female, they are numbered so you'll know which, if any have a problem, other to ground, I use PS cap. Don't know how to check relay.
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