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  #1  
Old November 15th, 2012, 11:22 PM
wantone
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Rick Thompson
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My wierd stalling. Yes i searched :)

Ok guys. My 94 has 148k miles. New silver relays. Stepper is 1 yr old. New cap & rotor. Has the kit that moves the coil etc away from motor. Coil has good connections so do the coil & plug wires. New fuel filter 18 months ago. Been running great. Started to get a miss for half a second at speed on feeway or even just going slow, very intermittant. Then gping down feeway it just shut off. Then i started it and it would fire for a second and then stop. Then it fired up and all good for a few days. Now it just started to miss and die after a stop light. It would start or hit a couple of times then die. Kept trying to start and then it fired up fine and ran well since. What the heck? Doesnt matter ifengine is hot or cold either? Doesnt matter if fuel tank is full or low either. Has had a spectra air filter in place of the stock cannister for two years as well. .???

Thanks!,,
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  #2  
Old November 15th, 2012, 11:50 PM
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coil perhaps, another common failure at high mileage is the ignition module... fuel filter shall be changed more regular than 18 months... a fuel filter is the life of a fuel injection system.
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Old November 16th, 2012, 07:36 AM
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Not sure if your Defender has one of these resistors, I had a similar issue with my RR Classic, it was hidden in the harness by the passenger side of the tunnel. It drove me crazy trying to find the issue, the terminals had major corrosion, they would wiggle and the truck would cut out, then one day nothing. .80$ in Radio shack resistors and it was on its way.... just a thought, I could be wrong.

http://www.britishv8.org/articles/rover-14cux-efi.htm
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  #4  
Old November 16th, 2012, 09:55 AM
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That sets the ECU tune. If its broken it would go into a default mode, but that would cause stalling.
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Old November 16th, 2012, 10:05 AM
wantone
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you mean the resistor? my truck spent most of its life in utah so it does not have much corrosion/rust, so i wonder if it would still be corroded etc. what is wierd is that sometimes when it acts up, it runs but sputters like it is not hitting on all 8 cylinders

------ Follow up post added November 16th, 2012 09:10 AM ------

after more searching maybe it is the coil. which one should i get? i read alot of guys put on mallory's if so, what part number?

------ Follow up post added November 16th, 2012 09:12 AM ------

oh, one more thing, a couple of weeks ago we had a cold rain overnight and it would not start or sputter at all, nothing. then the next day it fired right up.
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  #6  
Old November 16th, 2012, 11:22 AM
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Is there water in your ECU?
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Old November 16th, 2012, 12:24 PM
wantone
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probably not, never have had any signs of water in the passenger floor board or anything, but i will check. i am going to change the fuel filter today and see if that helps. hopefully i wont get stranded somewhere....
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Old November 16th, 2012, 01:12 PM
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Just saw this on ECR's FB page. May be worth a look. I thought it was nice they posted this information instead of keeping it to themselves:

Link


For those who don't have FB:

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"This is the resistor (commonly confused with a tune resistor). This is taped to the EFI wiring harness near the MAF sensor. With the key on you should have 12 volts coming in and about 9 volts coming out. If you have no voltage coming out that points to a bad resistor. If the resistor is bad the EFI ECU will not know the engine is trying to run, so it will not turn on the injectors. No injector pulse means no fuel and the engine will not run. We have seen that these resistors do not like extreme temps. as they get older and start going bad. Some 90s shut down when they get hot and then restart when things cool down (resistor going bad). Some will run when it is warm but don't want to when it is cold (resistor going bad). These parts are getting very old now, be sure to take a look at this part before you send your 1993-1995 NAS Defender to the shop. Most shops don't look for this simple fault and they start replacing costly things like fuel pumps and injectors instead of this cheap part."
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  #9  
Old November 16th, 2012, 02:12 PM
wantone
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thanks! where can we get the resistors?
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Old November 16th, 2012, 02:14 PM
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Quote:
Originally Posted by wantone View Post
thanks! where can we get the resistors?
Radio shack should have one according to posts made here. They are referred to as the "chicklet" on D-90 if you want to search.

How old is your alternator? Is the tach acting funny at all?
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Old November 16th, 2012, 06:05 PM
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Check and double check all of you ignition connections, also coat them with dielectric grease.
I had similar issues and a new ignition module fix it.

Good luck!

Cheers...
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  #12  
Old November 17th, 2012, 10:58 AM
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my D90 won't start and found this broken Lucas RD953066 Resistor. auto part store and radio shack don't have it.
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  #13  
Old November 17th, 2012, 02:07 PM
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6.8k ohm, 5 watt resistor. This should do the trick.

http://www.mouser.com/ProductDetail/...pBYJ%2fTef0%3d

under a buck, 400 in stock

its a HD part, here's the data sheet
http://www.mouser.com/pdfdocs/Vishay_CW.pdf

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Old November 17th, 2012, 03:04 PM
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Thanks Steve.
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Old November 17th, 2012, 06:10 PM
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Hope it works for ya!! 5w might be overkill, but it can't hurt to have heavy leads and take a bit of abuse..

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Old November 25th, 2012, 08:32 PM
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A bit of an update. I still have the wierd stalling, sometimes missing going on. I have noticed if it does die & i stop for a moment, shut it off it thenstarts fine. Tonight i noticed if i coasted it would die & when i started it (while coasting) it started fine but squealed & the tach did not come up with the rpms for a moment. I put an alternator from O'reilly's last summer so i am going to have it tested. Could a bad alternator cause all sorts of stalling issues, or screw with the ignition module?

Thanks

Ps i hv a new ignition module on the way. And the alternator belt is tight
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  #17  
Old November 25th, 2012, 08:50 PM
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Stop using cheap alternators!
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Old November 25th, 2012, 08:58 PM
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i agree. i went through 6 or 7 alternators from oreillys for my rrc. junk.
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  #19  
Old November 25th, 2012, 09:00 PM
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Quote:
Originally Posted by rcfarris View Post
i agree. i went through 6 or 7 alternators from oreillys for my rrc. junk.
www.actionalternator.com
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Old November 25th, 2012, 09:04 PM
wantone
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What should i buy? If the alternator is bad & they warranty it?....

Also, what if the truck is running fine when they test it?
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