Hard Starting...ARG!! - Defender Source
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  #1  
Old September 23rd, 2006, 05:23 PM
arbik
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Arbi Karapetian
1995 D-90 SW #163/500
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Hard Starting...ARG!!

Hi All,

so I resolved the no-start problem. My fuel pump was bad, so I replaced it with a new fuel pump, and a new fuel filter, and the truck starts now. It runs fine, idles fine, and has power.
However, It needs to crank quite a few times for it to start.
I looked for fuel leaks, but htere are none.
what can this be?

by the way, prior to the fuel pump going bad, the truck used to start with half a crank.

-arbi
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  #2  
Old September 23rd, 2006, 06:55 PM
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Chris Davis
94 NAS D90 6.2LS
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Could be the ignition switch at the beginning stages of going out. It stops triggering the coil, so everything is "sounding" right except for not starting. If it gets worse, this could be it. It can be intermittant, too. I think it is due to arcing until it just won't arc anymore...
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  #3  
Old September 24th, 2006, 09:19 AM
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revtor
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Steve Maietta
1969 IIA 88" Bugeye
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check your coil to distributor wire.. My ends are getting a bit too corroded and it takes a fe more cranks to start because of it. (this is todays project)

good luck
-steve
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  #4  
Old September 24th, 2006, 09:35 AM
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Bryan Tate
d90
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What about plugs, maybe fouled from a series of "no-starts"??
Simple to check......just a thought to check the basics
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  #5  
Old September 25th, 2006, 12:22 PM
arbik
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Arbi Karapetian
1995 D-90 SW #163/500
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Thanks for the replies guys. here is what I know:
-Plugs were bone dry, because my "no starts" were due to fuel pump failiure. I checked, and they're in good condition, and dry.
-Plug wires are about a year old, and they're in good condition. I made sure they're all plugged in correctly.
-The truck, started on the first half crank, before the fuel pump went out, so I'm not sure how it broke down during the 1.5 weeks it took me to replace the fuel pump.
-I checked for leaks from the fuel line, to see if it was loosing pressure, but there are no visible leaks.
-i double checked all the hose clamps on the intake side, and jiggled all the air flow meter connectors, and coil connectors.

So, now what?

-arbi
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  #6  
Old September 25th, 2006, 02:56 PM
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Jim Ngo
1994 D90 #80
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Maybe a stupid question, but is the fuel filter installed in the right direction? You should also check the fuel pressure. I think it's supposed to be around 40 PSI.
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  #7  
Old November 2nd, 2006, 05:32 PM
arbik
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Arbi Karapetian
1995 D-90 SW #163/500
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Location: La Crescenta, CA, USA
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What is a good way to check the fuel pressure? Where do you tap to check it?
THis hard starting problem is lingering..and on some days..It feels like its not going to start at all..
then it'll catch...stumble a little bit..then it runs fine.

Checked the fuel filter, its put on in the right direction. Not quite sure what else to check....

-arbi
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  #8  
Old November 2nd, 2006, 06:11 PM
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Neil Steinhagen
1990 Perentie GS
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I once saw a no-start problem that was caused by an ignition connector under the dash. The guy checked fuel pressure, changed coil, dist and rotor and still no start. Finally, he jiggled the key while starting and it fired right up. He had to replace the connector from under the dash coming from the key. Just a thought. Give it a jiggle and see if it fires up...the key that is.
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  #9  
Old November 2nd, 2006, 08:32 PM
MonLand
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Loic Fabro
95 D90 - 96 Disco -06 LR3
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I would suspect electrical, ignition or fuel based issue as the truck ends up starting (i.e. not air). [Yes, I know.... This is not helping much]
Did you leave to truck outside/in the rain/humidity in the last 2 weeks (compared to before where maybe it was sleeping in your garage)? I guess I am trying to understand if there is anything in the last two weeks that was different than before.
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  #10  
Old November 6th, 2006, 09:24 AM
arbik
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Arbi Karapetian
1995 D-90 SW #163/500
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New Findings...

Ok.

So I got another piece to the puzzle.
The car is hard starting, but pushing the gas pedal all the way down helps start it.
I'm thinking, maybe the problem is the throtle position motor.
I checked the wires to it and it seems like its on there pretty good.
I hought if this unit was maulfunctioning, that the engine would throw codes. The check engine light is not on.
Any ideas?

-arbi
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  #11  
Old November 7th, 2006, 01:08 PM
MonLand
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Loic Fabro
95 D90 - 96 Disco -06 LR3
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Just an FYI: I just replaced my stepper motor that was bad and not throwing any code. In my case, it was stuck open. Can you check if it is stuck half-way closed?
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I have an ex MoD and an ex wife. The two no longer conflict with each other.
Quote:
it is not hoarding it is selective collecting
---
MonLand
1995 D90 NAS
1996 Discovery NAS
2006 LR3 NAS (hers, but comfy! :) )
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