Dual Solenoids
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Dual Solenoids
My friend brought over his late 99 Federal PSD not the California model. 156,000 miles. He his having starting problems. He believes it is intermittent. He has changed out the glow plug relay and plugs in the block heater here in Northern Nevada where temps have been in the teens, low 20's. The truck is garaged at night. I was looking at the truck and there are two replays next to the fuel filter housing. One I assume is the glow plug relay.....What is the second relay for? My early 99 California model has just one relay. The batteries are new, about 4 months old. At this point I'm thinking that:
1. The a glow plug is bad or several
or
2. The block heater is not working.
or
3. A problem exists with the wiring at the valve cover connector or under neath the valve cover wiring.
I have the truck and it is outside, plugged in for the night and will check the start in the morning...
Any other suggestions?
Thanks
______
Jeff
1. The a glow plug is bad or several
or
2. The block heater is not working.
or
3. A problem exists with the wiring at the valve cover connector or under neath the valve cover wiring.
I have the truck and it is outside, plugged in for the night and will check the start in the morning...
Any other suggestions?
Thanks
______
Jeff
stinson 108-1
Joined: Jan 2012
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From: south jersey
The second is the air intake heater and has nothing to do with starting. Make sure he has 12v on the glow plug side of the relay. Just because its new, doesn't mean its working. Check the connections at the valve cover, and turn the key on and wait at least a minute before starting. If everything is working properly it should start easily at those temps without plugging it in.
Logistics Pro
Joined: Jun 2005
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From: AZ
If it doesn't start after you wait one minute, I'd jump (using a screwdriver) the two large posts on the GPR for about two minutes with the KOEO. If the GPR is dead, this will allow the GPs to get hot enough to start the truck.
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He replaced the GPR before he brought the truck over. I tested the unit with a volt meter and get 12.3 volts with KOEO. Since the engine was already warmed up. The GPR took 45 seconds to cycle off. He left the truck and I have it outside and plugged in. The morning temp here is 18 degrees @ 5:30. I'll start the truck about 9 am when I then have the shop available to pull the truck in.\
Jeff
Jeff
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From: Morehead, Ky.
On mine when I turn the key on, using a Powerpoint Volt meter, voltage drops to around 10.7. If the glow plugs are working, I don't think you will see 12.3 V/
Someone correct me if I am wrong.
Someone correct me if I am wrong.
Cargo Master
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From: OKC, OK
This sounds right.
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That makes sense. never thought about it from that perspective. The glow plugs would draw the voltage down when heating the chambers. I'll check once again before I start the truck and then post.....Thanks for that heads up.
_____
Jeff
_____
Jeff
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From: BoCoMo
The voltage at the GPR will read what the battery is with a meter,both sides the same when it comes on and works.
If you use a plug in meter on the dash (cig port) that shows voltage. With the key off the voltage should be 12.5v. When the key is turned on it should drop to 11.5v. If you are dropping to 10.7v, you are at that point of where the truck may not start. that is at 10.5 volts. When you hit the stater, the voltage will drop below the 10.5v that you need to start the truck. Truck will not start at that point do to low voltage.
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From: Morehead, Ky.
The voltage at the GPR will read what the battery is with a meter,both sides the same when it comes on and works.
If you use a plug in meter on the dash (cig port) that shows voltage. With the key off the voltage should be 12.5v. When the key is turned on it should drop to 11.5v. If you are dropping to 10.7v, you are at that point of where the truck may not start. that is at 10.5 volts. When you hit the stater, the voltage will drop below the 10.5v that you need to start the truck. Truck will not start at that point do to low voltage.
If you use a plug in meter on the dash (cig port) that shows voltage. With the key off the voltage should be 12.5v. When the key is turned on it should drop to 11.5v. If you are dropping to 10.7v, you are at that point of where the truck may not start. that is at 10.5 volts. When you hit the stater, the voltage will drop below the 10.5v that you need to start the truck. Truck will not start at that point do to low voltage.
Those little plug in testers are probably not real accurate.
I just wanted to make the point that voltage drops when the glow plugs kick in. And 2 minutes of glow plugs is a whole lot less voltage drop than 30 sec. of starter.
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So here are the results:
22 Degrees...Battery side of GPR is 12.5 volts. Volts with KOEO at 11.65 Volts on the GP side and cycled for 56 seconds.
Trucked started fine for me twice this morning.
Now I'm going to ohm the glow plugs. At what ohm setting should I set the meter?
200, 2000, 20k, 200k or 2000k?
I understand the plug reading should be between .8 to 1.2 correct?
Jeff
22 Degrees...Battery side of GPR is 12.5 volts. Volts with KOEO at 11.65 Volts on the GP side and cycled for 56 seconds.
Trucked started fine for me twice this morning.
Now I'm going to ohm the glow plugs. At what ohm setting should I set the meter?
200, 2000, 20k, 200k or 2000k?
I understand the plug reading should be between .8 to 1.2 correct?
Jeff
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I want to thank all that put in their two cents.....I ended up replacing my volt meter with an auto ranging one. The glow plugs have now been changed out. Here's the readings from the old plugs.
#1 was at 36.4 ohms #5 was at .6
#2 was at .7 #6 was at OL
#3 was at OL #7 was at .5
#4 was at .6 # 8 was at .1
The new units ohmed out at 2.0 and 2.1 each and when cycling the GPR the voltage drops to 11.1 volts.
The truck now sits in the drive way unplugged and a temperature tonight in the low 20's....
Again....Thanks
Jeff
#1 was at 36.4 ohms #5 was at .6
#2 was at .7 #6 was at OL
#3 was at OL #7 was at .5
#4 was at .6 # 8 was at .1
The new units ohmed out at 2.0 and 2.1 each and when cycling the GPR the voltage drops to 11.1 volts.
The truck now sits in the drive way unplugged and a temperature tonight in the low 20's....
Again....Thanks
Jeff
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