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  #1  
Old January 1st, 2010, 07:31 PM
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Robert Lynch
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No Start - yet another

searched all the other threads on this but stumped and headed to India on monday for a few weeks.

after drving all week 0(heavy traffic, snow, moutnian passes/back roads with even more snow, etc.) with no problems.
Parked the 90 overnight in a parking garage to switch out for the mini van to run our company to the airport. this morning it won't start.

Checked Fuses for Fuel pump, ignition, etc. (cabin and engine compartment)
Relays seem to be clicking on
engine light illuminates then goes out.
checked cap wires and coil - nothing changed and is tight (just had a full 90k service 2K ago)
Oil ok.

the truck will crank but not turn over - seems to not be getting fuel

Some questions - the engine compartment has the roll over switch which cuts fuel - could this be it. i pressed it (same symptions) disconnectred the batter and ECU then retried.

stumped - i have some time to work on it tomorrow before i need to call AAA and get it towed due to time.

thougths?

thanks
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  #2  
Old January 1st, 2010, 09:18 PM
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shane cates
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I'm no expert but I would do what I always do on my old cars. Pull a fuel line somewhere and turn it over to see if it is getting fuel. Pull a plug and turn it over to see if it is getting spark. A multimeter would be helpful beyond that. Fuel pump working?
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  #3  
Old January 1st, 2010, 10:44 PM
matt L.
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matt lipetska
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Just happened to me last week with my '95 SW here in New Orleans after a heavy days of precipitation.
Sounds like same symptoms and trouble shooting as I performed.

I ordered (from BP) and replaced the ignition module and ignition coil and had positive results.

Also replaced the ignition coils and plugs and ran even better.

-Matt
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  #4  
Old January 1st, 2010, 11:10 PM
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Robert Lynch
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ordering a Coil and relays for the field kit now - what is the ignition module part #?

chances of getting parts tomorrow looks close to nil so its a tow.

what worries me is the suddenness of the failure - no warning, etc. and possibly no recovery with out new parts.
not good for the woods or extended journeys. (that and the gas mileage of the V8 pretty much rules it out for anything serious.
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  #5  
Old January 1st, 2010, 11:24 PM
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Don Lang
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OK why would you order ignition parts if you think it is not getting fuel?
cycle the key and listen for the fuel pump to run, if it does not then no point in ordering ignition parts.
If it does not run check for power and ground at the pump and go from there.
Get the RAVE cd it is a use full piece of kit too!!!!
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  #6  
Old January 2nd, 2010, 12:53 AM
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Robert Lynch
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as a said for the field kit - probably not the cause of this issue i realize. But i want to have the spares handy for the comman problems like this that strand the truck,

will recheck the fuel pump in the morning as well as the fuses/relays again.
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  #7  
Old January 2nd, 2010, 09:33 AM
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shane cates
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It should take only a matter of minutes to determine if it is getting fuel and spark. If its the coil, I would rig up something from the auto parts store before paying for a tow.
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  #8  
Old January 2nd, 2010, 08:33 PM
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I carry and swap out immediately on a no start, both silver relays and the computer (takes all of 1 minute). Next I unplug the MAF and try starting again. Next I check the coil wires and swap the big coil wire, then swap out the ignition module (takes time to do the module), cap, and rotor if suspect etc. This takes care of ~90% of no starts.
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  #9  
Old January 2nd, 2010, 09:03 PM
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Robert Lynch
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Which ecu's will fit disco/rr anything with a 3.9 ?
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  #10  
Old January 2nd, 2010, 09:12 PM
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Any 3.9 or 4.2 14CUX ECU will work. I am 99% sure a 14CU ECU (1993 110 and 1990-92 RRC) will work too. Basically 94-95 disco I or similar vintage RRC is fine.

That being said, it is usually not the ECU.
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  #11  
Old January 2nd, 2010, 09:20 PM
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shane cates
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I guess we can't just check the easy stuff. Must reinvent wheel.
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  #12  
Old January 2nd, 2010, 11:04 PM
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Robert Lynch
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Nope first thing I did.
Fuel pump fine, relays clicking.

I could not pull the fuel filter line due to being in a retirement village pArking garage Nor was I able to check spark at the disti b/c I was alone w/ no way to ture it over and check single handed.
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  #13  
Old January 2nd, 2010, 11:11 PM
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shane cates
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pull a plug and fire it against something metal.
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  #14  
Old January 2nd, 2010, 11:29 PM
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Abel Villesca
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Have you tried Roadside Rob's fuel injection trigger wire trick? My 95 ST failed to start randomly for no apparent reason and the post below got me going again. Good luck!

http://www.defendersource.com/forum/...3&postcount=14

"It may be that the engine is flooded rather than starved for fuel. To clear a flood condition, disconnect the fuel injection trigger wire from the coil...it comes across from the valve cover and has a black rubber boot on it. After disconnecting it, hold the throttle wide open and crank the engine. If it is flooded, the engine will usually crank for a bit and then fire, sputter and die. By disconnecting the trigger wire you are shutting down the fuel flow but the ignition system is still working allowing you to clear the flood condition. Reconnect the trigger wire and the truck should start. The fuelling map on these trucks is set up to run rich at cold start to help light off the cats. The original fuel map was a bit aggressive and would occasionally result in a flooded engine under certain conditions. Newer PROM chips had a revised map that was less aggressive. Try this before doing anything else...I've had these truck flood cold, hot at high altitude (10,000 plus feet), and sometimes for no seemingly fathomable reason."
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  #15  
Old January 3rd, 2010, 02:12 AM
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Robert Lynch
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Shane - wasn't thinking of that - thanks
abe - could be, i'll have to try it later if it reappears (probably will given the experiances here)

for now AAA+ dropped it at Biggs eastside landrover and it will have to wait on him till monday.
i'm off to sunny hyderabad India monday and ran out of time to play with it.


i'm going to try to pick up a few TATA badges if anyone is interested.
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  #16  
Old January 3rd, 2010, 02:35 AM
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BTW, if it is flooded you will smell fuel and everytime it happened to me I was able to start it by cranking while I put my foot to the floor.
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  #17  
Old January 3rd, 2010, 02:45 AM
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Robert Lynch
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no love there - tried that
smelled fuel (but not a lot really) so i am assuming its ignition related (coil is what i am thinking, but we will see)
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  #18  
Old January 3rd, 2010, 11:33 AM
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Charles Galpin
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Quote:
Originally Posted by rlynch356
i'm going to try to pick up a few TATA badges if anyone is interested.
Count me in!
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  #19  
Old January 3rd, 2010, 12:19 PM
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Normally it's pretty easy to isolate it if it's a fuel problem. If you can hear the pump running and there's no trouble codes, the EFI is usually fine. Swap the relays, and if there's no change move on.

Anything else is normally ignition. And there's NO diagnostic system built into the distributor. Clean all the terminals on the ignition coil and check for spark at plug #1. Then go from there.

-Hans
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  #20  
Old January 3rd, 2010, 03:30 PM
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Robert Lynch
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Yep no fault code. Assuming ignition
will try to get a few badges
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