M1009 takes 3-5 tries to start when NOT started in 1-3 weeks.

[SFC Deal]

Hi All, I'm new here. I have an 85 M1009 that doesn't want to start when left setting for 1-3 weeks. I have to cycle the key 3-5 time before it does start. I am waiting on the wait light to go off, But the truck just wines over & over without starting. Any thoughts on what could be wrong?

 

[bigginstactical]

Clean all the connections on the truck. Check batteries. Also use the search function on the upper right this has been covered hundreds of times with many many great fixes. Welcome to the forum.

 

[SFC Deal]

Thanks for the info.

 

[bigginstactical]

Here are few links that have good info and also will lead you to many other good threads.

http://www.steelsoldiers.com/showthread.php?56247-Alternator-trouble
http://www.steelsoldiers.com/showthread.php?75505-CUCV-Wiring-Diagram-color-(except-M1010)

 

[Warthog]

Sucking air at the fuel filter pressure sensor.

 

[SFC Deal]

I'm not sure it would be electrical. It cranks over just fine & when does start, it runs OK.

 

[bigginstactical]

Agreed. Its only a matter of time before it electrical though haha. From experience listen to Warthog! haha

 

[SFC Deal]

Where is the fuel filter pressure sensor AND is it easy to fix?

 

[lavarok]

You have a leak somewhere in the fuel system. As warthog pointed out, the fuel filter base is prone to leaking. There are other spots to check as well, so follow the fuel line from the tank to the front and look for wetness. The fuel pumps are prone to problems and will leak over time. Cracked rubber lines or rusted metal lines can also leak.

Sometimes it helps to mildly pressurize the fuel tank as the fuel pump works under suction and a leak between the tank and pump may not be easily seen. Only use a few lbs of air...do not over pressurize and blow up your tank.

 

[Warthog]

You can fix it but most guys just go with a Spinon filter setup. I know of only one vendor selling a new switch. You can also replace it with a freeze plug. The switch is behind the filter on the mounting base.

search the site for instructions.

 

[Warthog]

You also need to diagnose your glowplug system.

 

[SFC Deal]

The glow plugs and Truck are original (I think) & have a little over 28,000 miles on them. How long (age or miles) are glow plugs good for?

 

[Warthog]

The GPs can last for years or just a few minutes.

The TM 9-2320-289-20 technical manual has a great step by step procedure to check the system. Section 2, paragraph 19, page 2-64.

You have downloaded the FREE technical manuals haven't you? If not the Tech Manual link at the top of the page will take you to them.

Do you have a multimeter and know how to use it? This is the one tool that everyone has to have to troubleshoot the CUCV eletrical system.

Tell us a little bit about yourself. Skill set? Mechanical ability? Military service? etc. Makes our job of helping you a little easier.

 

[SFC Deal]

I am retired Army. I was full time Infantry for 8 years, & 19 years Ga. Army National Guard 19K, M1A1 Tanker. In 2005 we went to Iraq & had our Tanks Taken away & give Hummers. I was wounded twice & sent to Walter Reed. I was a Gunner & then TC so I road in em & did fix em. So, I have VERY little to NO electrical maint. knowledge.

 

[Warthog]

THANK YOU for your service!!!

You do not need a masters degree in electronics to work on the truck (unlike todays cars.... ). All you need is a basic understanding of how to check voltage, take resistance readings (ohms) and learn to follow the lines on wiring diagrams. Youtube has some great videos on the first two. We will help you with diagrams. You can pickup a $10 meter at Walmart to start with.

Start with the stickies in the CUCV forum. Watch the video on the GP Therory of Operation. Simple and straight forward.

Download the Tech Manuals and print off the first few pages of Chapter 2 - Troubleshooting Section. This will explain how to read the diagrams and what all the symbols are. And then review the wiring diagrams in the appendix.

 

[SFC Deal]

Thanks for the info. I was thinking it cant be that hard with no real on-board computers.

 

[Warthog]

The majority of the electrical problems with the CUCVs are dirty connections. Discconnect, clean, di-electric greas and reconnect usually fixes the issues.

Now back to your starting issue:

Check for wetness around the fuel filter. Also use a flashlight and look at the passengerr side of the injector pump for wetness. And in the vally of the engine under the intake manifold. We are looking for signs of a fuel leak.

 

[SFC Deal]

Thanks, Will do.

 

[Warthog]

Forgot to mention that you are in good company in your area. Alot of SS members in GA. Zout, Swiss and Clinto (many others also) are in your general area and can help with your truck.

If you can, try to attend the nations largest gathering of SS members and trucks. October 9-12 in Durham Town, GA

http://www.steelsoldiers.com/showthread.php?106072-Official-2013-SS-Ga-Rally-Info-thread

 

[SFC Deal]

I also forgot something. When I do get it started, It is sluggish & has VERY little take off power. But, when I get it to normal driving speed it works just fine. If I stop somewhere, turn it off, then get back in, it starts up just fine. But, It still has the sluggish take off power. Any thoughts?