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 89 3,0L Starting Problem
#869265
02/14/08 05:14 PM
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Joined: Oct 2007
Posts: 184
OP
Wheeler
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Starter works fine, new coil,distributor cap and rotor. Revsfor a second and then stops like the power was shut off. Then will turnover and no spark. Does anyone have any ideas?
89 3.0 LWB Montero, 1st Gen, 5 Speed Manual, 5 Door
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Re: 89 3,0L Starting Problem
[Re: PatrickS]
#869266
02/14/08 06:41 PM
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Joined: Jan 2001
Posts: 13,649
Web Wheeler
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It fires off, then dies? And won't fire off again for how long?
First guess is ecu capacitors, just 'cause so many have failed.
Not responsible for advice not taken...
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Re: 89 3,0L Starting Problem
[Re: PatrickS]
#869267
02/14/08 07:04 PM
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Joined: May 2005
Posts: 927
Rock Warrior
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Huh. Kind of sounds like a fuel supply issue to me if it lights off for a second, then dies and just cranks on restart attempts. You're sure on the "no spark"? If you let it sit for a while will it go through the crank/light-off/die/crank-no-restart cycle again?
Eric W.
'89 Dodge Raider -- 3.0L V6, MT, SWB
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Re: 89 3,0L Starting Problem
[Re: PatrickS]
#869268
02/15/08 01:08 AM
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Joined: Aug 2004
Posts: 644
Rock Warrior
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Do you have power to the coil when there is no spark? If so, go to the distributor and check the four wires with key on and connector disconnected. You should see.
12v
ground
5v
5v
Both 5 volts should pulse to zero and back when cranked.
Over the hill but still climbing.
88 Montero 2.6L auto, manual hubs, cooling fan conversion gps,recurved distributor,LSD Diff.
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Re: 89 3,0L Starting Problem
[Re: PatrickS]
#869269
02/15/08 05:16 AM
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Joined: Feb 2005
Posts: 2,649
Roll Me Over
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First guess is ecu capacitors, just 'cause so many have failed. I agree with Eddy. Pull the ECU and have a look. It's under the glove box.
Michael j
TreadLightly! Trainer
Grasscat III, 1994 Gen 2 Five speed, Stock ( for a little while )
GrassCat II, 1998 Gen 2.5 Locked and loaded. Ran off with Hector.
GrassCat I, 1991 Gen 1 Ran off with Justice.
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Re: 89 3,0L Starting Problem
[Re: fasteddy]
#869270
02/15/08 09:12 AM
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Joined: Oct 2007
Posts: 184
OP
Wheeler
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It does not fire off again for hours or the next day.
89 3.0 LWB Montero, 1st Gen, 5 Speed Manual, 5 Door
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Re: 89 3,0L Starting Problem
[Re: PatrickS]
#869271
02/15/08 09:14 AM
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Joined: Oct 2007
Posts: 184
OP
Wheeler
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When I pull the ECU how can I check the capasitor
89 3.0 LWB Montero, 1st Gen, 5 Speed Manual, 5 Door
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Re: 89 3,0L Starting Problem
[Re: PatrickS]
#869272
02/15/08 03:22 PM
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Joined: May 2007
Posts: 4,628
Roll Me Over
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Fasteddy's advice is occasionally sound...
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Re: 89 3,0L Starting Problem
[Re: PatrickS]
#869273
02/15/08 04:28 PM
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Joined: Oct 2007
Posts: 184
OP
Wheeler
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I pulled the
ECU checked the capasitors for leakage or physical damage and could find nothing.
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Re: 89 3,0L Starting Problem
[Re: Grasscat]
#869274
02/15/08 09:44 PM
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Joined: Oct 2007
Posts: 184
OP
Wheeler
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When cold, turn key to start and there is power to coil for very short time and then stops. As the key is turned off there is power to the coil for another instant.
When I have luck and it starts and runs, after warms up, then is no problem to shut off and restart.
Removed the ECU, all conections appear in order and no leakage at the capacitors.
Just before the coil there is another very small module. Is this also a capacitor?
Any Ideas?
(EDIT: ...added from second post)
89 3,0L Starting Problem Part 2
#1078734 - 02/15/08 05:20 AM (62.224.246.71)
Starter works fine, new coil,distributor cap and rotor. Revsfor a second and then stops like the power was shut off.
When cold, turn key to start and there is power to coil for very short time and then stops. As the key is turned off there is power to the coil for another instant.
When I have luck and it starts and runs, after warms up, then is no problem to shut off and restart.
Removed the ECU, all conections appear in order and no leakage at the capacitors.
Just before the coil there is another very small module. Is this also a capacitor?
Any Ideas?
Last edited by PHIL; 02/16/08 12:56 AM.
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