90 Stalled and would not restart - Defender Source
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  #1  
Old April 7th, 2009, 01:42 PM
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barry f
94 ST #395
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90 Stalled and would not restart

I have been having an issue with my 90 where as I will be driving for a bit and all of a sudden if I am at a light or something (clutch in) the RPM drop like it is about to stall and then shoot right back up to the normal level. I thought maybe it was the fuel injection or something so I used one of those cleaner prducts you put in the gas. The issue was really intermittent so I wasn't sure. Well, yesterday I was at a light in rush hour and the rpm dropped and the car stalled. It would not start for a good ten minutes. I finally got it going and drove about a block before it stalled while moving. I pulled over, started it again and made it home. Any ideas?
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  #2  
Old April 7th, 2009, 01:50 PM
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Check engine light?
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Old April 7th, 2009, 01:52 PM
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Nope
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  #4  
Old April 7th, 2009, 02:47 PM
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It could be the fuel pump, has the filter been changed lately? You can pull the fuel return line off the fuel rail, it is held on with a regular clamp. Run a short fuel line from the fuel rail to a bottle, it should pumop about 1 once per second when the enginer is running. If it in not the fuel pump is not pumping what it should.

You can also check the fuel pressure, but you would probably need to ashop to do this for you.
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Old April 7th, 2009, 02:50 PM
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I have a farily new filter and my pump is less than a year old. I replaced it because I had the tank out anyway. Would be pissed if the pump went already
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  #6  
Old April 7th, 2009, 03:03 PM
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Andrew Najarian
'93 NAS D110 #43
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Check the wiring to the fuel pump as well. It is notorious for failing as dirt and road grime gets to the connections near the tank and causes a lot of corrosion on the connections. I replaced all the connections to the sender and tank during my rebuild to remedy this.
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  #7  
Old April 7th, 2009, 03:29 PM
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I had something like this happen to my SW, the wire to the starter was loose.
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Old April 7th, 2009, 03:42 PM
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Seem like it is the stepper motor if it is only happening at idle.

Ron
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Old April 7th, 2009, 04:42 PM
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hmm thanks. What is the stepper motor and can I do it myself?
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Old April 7th, 2009, 04:46 PM
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Also known as the idle air control valve. It is the black thing screwed into the side of the intake at the back on the passenger side. Clean it first and then if it still does it, try replacing it. YOu could try swapping with your 110 to see if that is the issue (the major benefit of two rovers!).

Ron

it looks like this:

http://www.roverparts.com/product/img/Icn/ETC6660.jpg

only the end with the sides like a bolt is showing and there are wires coming out of it.
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Old April 7th, 2009, 04:55 PM
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so in the engine cmopartment? I love asking questions that could be easily asnswered if I popped the hood? HOw do you clean it?
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  #12  
Old April 7th, 2009, 05:02 PM
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No, it is located inside the rear fuel tank. You clean it by putting a match in the hole it was removed from.



Yes, engine compartment. I spray a little brake clean on it and the hole it sits in to clean it and wipe with a rag until clean.
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  #13  
Old April 7th, 2009, 05:07 PM
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Where in engine compartment? Do I have to unplug wires from it? Just screw in? PB Blaster ok to clean it? Where do babies come from?
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Old April 7th, 2009, 05:22 PM
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On the intake in the back on the passenger side. You see the thing that says 3.9 on it. Look toward the back and you will see it. Babies come from LA.
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  #15  
Old April 7th, 2009, 05:25 PM
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Thanks
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  #16  
Old April 7th, 2009, 05:27 PM
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Unplug the wires. You have to push on the tab or pull on the tab to get the plug oput. All of this is painfully obvious when you look at it.

Ron
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  #17  
Old April 7th, 2009, 05:34 PM
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barry f
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Just looking online at replacements. Seems it is like 169 for a genuine one and 27 bucks for a generic. NOt that I need it. Just wondering
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  #18  
Old April 7th, 2009, 05:43 PM
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27 seems like I would try the cheapo.
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  #19  
Old April 7th, 2009, 05:47 PM
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First I will clean it
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  #20  
Old April 7th, 2009, 07:52 PM
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Pulled it out. Paper washer disinigrated in my hand.

DO I need it? Does it look particularly dirty?
http://www.flickr.com/photos/barryri...19093/sizes/l/
http://www.flickr.com/photos/barryri...28178/sizes/l/
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