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#1
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glow plug lights stays on for about 45 seconds after starting
Explained it all. Yesterday morning I went to start the '79 300SD when as soon as it started the glow plug light came on and kept blinking. I turned it off but it didn't shut off? Where would the vacuum leak be for not turning off? But anyways, it finally turned off and I restarted it, it blinked for about 45 seconds. It always does that now ever since yesterday morning. It blinks the same amount of times every time it is started. Does it if the engine is cold or hot.
Thanks David
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_____________________________________________ 2000 Honda Accord V6 137k miles 1972 300SEL 4.5 98k miles _____________________________________________ |
#2
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Want,
The automatic GP system is telling you that you have an open GP. Do a resistance test on the GP to find the bad one and replace that one only. It might be a good idea to put the new GP in cylinder #1 and replace the bad GP with the GP from Cylinder#1. P E H |
#3
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stupid question
cylinder one is on which end. Radiator end or firewall end?
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"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way". by JerryBro The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair 62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels |
#4
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Cylinder #1 is closest to radiator and the rest count upwards toward the firewall.
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#5
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Quote:
Much thanx.
__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way". by JerryBro The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair 62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels |
#6
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what kind of resistance should I get on each one? Are they all the same resistance?
Thanks David
__________________
_____________________________________________ 2000 Honda Accord V6 137k miles 1972 300SEL 4.5 98k miles _____________________________________________ |
#7
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Want,
The GP should all measure about the same, 0.6 to 0.8 ohms. A bad or open GP will almost always stand out as being different from the others. Easiest way to measure GP resistance is to take the connector (the one that it's cable goes to the GP) out of the GP relay and use a banana plug in the connector holes for the one ohmeter lead. The other ohmeter lead must goto a good cround. When you find a high reading, just trace that wire to the bad GP. P E H |
#8
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Cazzzidy,
Ok we all know where the #1 cylinder is. Where is the #2 cylinder on a MB V type engine? P E H |
#9
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Quote:
Much thanx.
__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way". by JerryBro The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair 62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels |
#10
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Coach , you can check the resistance at the plug or the connector at the relay. The important thing is to have continuity between the glow plug's terminal and it's body (which gets grounded when it's installed), the ohms measured will tell you if the internal resistor is within specs . If you get a reading that is more than 1 ohm at 20C (68F)then there is a problem . Bypass the wiring and test at the GP terminal and if you still are reading more than 1 ohm then replace the GP. What kind of a relay did you install, mine is acting up and $235US ($345Cdn) is more than I want to spend right now .
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Democracy dies in darkness, you have to kick at the darkness till it bleeds daylight |
#11
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Coachgeo,
Once you remove the connector from the GP relay, there is no connection between the relay and the GP. So when you connect one end of the ohmeter by plugging a banana plug in the hole in the connector, you are connecting the meter to the GP thru the wire that connects it to the relay and eliminating spureous readings because by removimg the connector, you eliminate parallel connections to other GP. The only other way to get correct readings is to remove the wire from each GP being tested which is more difficult than removing the connector from the GP relay. One more test you can do after the GP is out of the engine is to clamp the GP body in a Vise Grip (VG) type wrench (is there ever any end to the usefullness of a VG wrench) and then touch the handle end of VG to one terminal of the battery and the GP terminal to the other battery terminal. The GP should glow red hot within 10 seconds. If it does, the GP is OK, if not its KAPUT. Be careful handling the GP after the above test. It will be hot unless its shot. P E H Last edited by P.E.Haiges; 08-13-2003 at 04:15 AM. |
#12
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Coachgeo,
Only if the FWD has a transverse mounted engine. LOL P E H |
#13
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Quote:
Real glad he did it this way if the correct parts are that spendy owwwww. The repair and parts cost me 1500 as it was.
__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way". by JerryBro The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair 62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels |
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