is my glo plug relay suppose to be hot(2 big terminals) i touched the terminals were u bolt the cable and they were really hot??

 

I would not think so. Was anything else around the GPR relay hot or was it just the terminals? Here is a link to guzzle's upgrade for the GPR. I have the on my truck and it works great.

http://guzzle.rbmicro.com/s_gpr.html

 

no not that i noticed

 

now i just turned key on and the gpr was making a loud humming sound??

 

That humming sound is normal. Some other will probably chim in here is a min or two to help you out. Do you get a lot of smoke when you start her up in the morning?

 

do this to check your GPR circuit:
To check the Glow Plug Relay (GPR)
· Be sure the engine is cold, so that the PCM will tell the GPR to turn on. If the engine is hot, you won’t have as much time to check.
· Locate the GPR – Its behind the fuel filter on top of the engine, a little bit toward the passenger side of the valley. There may be two relays there. If so, the rear one is the GPR. It will have two fairly large wires (yellow and brown) connected to one of the large posts.
· With your multitmeter set to DC volts, and 15 V range (if not autoranging), clip the positive (red) lead to the output terminal (with yellow and brown wires connected), and the negative (black) lead to a good ground point (like the battery ground terminal or someplace metal directly on the engine block.)
· Turn the key to ON (do not start)
· If your GPR is good, it should click, and you’ll see 11 volts or so on your meter, then, depending on temperature, it will click off up to 2 minutes later. You should do this a couple of times to make sure it consistently makes the connection.
· If you don’t get voltage with this test, confirm by retesting as follows.
· Remove the two small wires from the smaller two of the four GPR terminals.
· With jumper wires, apply voltage from the battery across the two small terminals. If your voltmeter now reads voltage on the output terminal, your GPR is OK, and your problem is in the PCM circuit that tells the GPR to activate.

To check Glow Plugs.
· Remove the electrical connector on the inboard side of valve cover at the gasket. Press down on the top of the connector latch and pry gently with a screwdriver.
Disconnecting VC harness connector

· There will be 9 pins on the valve cover gasket where you removed the connector. The two pins furthest forward and the two pins furthest back are for your glow plugs.
· With your multimeter set to resistance (ohms) and low range (single digits) if not autoranging, clip the negative (black) lead to a good ground point.
· Probe each of the 4 outer pins individually with the positive (red) lead, noting the resistance. Good glow plugs will have a resistance between 0.6 and 2 ohms. If you get infinite resistance on any glow plug, that one is either bad or the connector under the valve cover has come loose.

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will chck em tommorow i replaced the gpr and that loud noise went away and it didnt get hot either this $%#$ is really pissing me off

 

Your GPR maybe bad if it gets that hot, mine did the same! when I took the old one out to replace it, I took it apart to see how it looked inside. The contact area was all burn't except one little area!! That cause's alot of arc inturn heat!!! It can test okay, and still be bad, at least that was my problem!! Starts much better now too....

 

well i hope this solves the problem

 

Let use know how it turns out. Thank You!!