85 USMC M998
Member
- 228
- 17
- 18
- Location
- Monroe Area, MI
I forgot to add, that when I installed the new GPC the plugs cycled on.
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A reliable 25yr old military vehicle? I would sell it now...LOLGood evening! I just joined this site after purchasing a 1992 M998. I have been driving it for the past week or two to my shop and back and love it. This morning, however, the wait to start light did not come on and she wouldn't start in the cold. I didn't try to keep cranking.
I did a quick search on the internet and discovered a couple ideas of what it could be - I got under the dash and saw that it seems to have the upgraded start control box, a KDS CR-2699. Does it make sense that I believe someone upgraded this box? Also - what should my next step be? I think I should disconnect the battery, and pull the plugs on it and make sure there is no corrosion. Then I was going to check the glow plugs with a multimeter, still in the engine, looking for an OHM reading of 1.5-5?
If the KDS box is indeed an upgrade, is there a way to test it to make sure it works? Does this box prevent stacking and ultimately melting my glow plugs?
Any help would be greatly appreciated - I sold my wife on this idea based on the fact that the M998 would be very reliable and rugged. I can hear her yelling at me now when she finds out that its broken down after a week or two! HELP
Thanks in advance,
Sean
SeanGood evening! I just joined this site after purchasing a 1992 M998. I have been driving it for the past week or two to my shop and back and love it. This morning, however, the wait to start light did not come on and she wouldn't start in the cold. I didn't try to keep cranking.
I did a quick search on the internet and discovered a couple ideas of what it could be - I got under the dash and saw that it seems to have the upgraded start control box, a KDS CR-2699. Does it make sense that I believe someone upgraded this box? Also - what should my next step be? I think I should disconnect the battery, and pull the plugs on it and make sure there is no corrosion. Then I was going to check the glow plugs with a multimeter, still in the engine, looking for an OHM reading of 1.5-5?
If the KDS box is indeed an upgrade, is there a way to test it to make sure it works? Does this box prevent stacking and ultimately melting my glow plugs?
Any help would be greatly appreciated - I sold my wife on this idea based on the fact that the M998 would be very reliable and rugged. I can hear her yelling at me now when she finds out that its broken down after a week or two! HELP
Thanks in advance,
Sean
Rats.No the voltmeter did not pulse like it usually does.
Those packard connectors and 25 year old dielectric grease aren’t infallible.Ahh the case of take it apart and put it back together and everything works. Glad you are back in business.
Chinese made knockoffs? That's really weird.So after an immense amount of trouble shooting, turns out the 24v brand new military gp were the problem. They ohmed out just fine but for some reason the s3 did not like those plugs. I got a brand new set of the same exact plugs and everything works fine. What I find interesting is those plugs went through two separate s3 boxes and tsu. Both with same result and not working even though they tested fine. Installed a new set of plugs and works. Theories? Aside from the obvious dud set.