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 Parked, now no spark. 1990 Montero 3.0L. Need some troubleshooting help
#845930
11/08/07 01:00 AM
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Joined: Nov 2007
Posts: 2
OP
Need a Spot
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Hi,
I parked my 1990 3.0L V6 4-door 4WD Montero about 6 months ago. I charged up the battery and tried to start it. It cranks hard but won't turn over. I tested for spark and has none. Plug wires aren't new but newer. I swapped out for a new distributor cap & rotor, even though I didn't figure that was the problem they were cheap. I had the Ignition Control Unit tested at a local auto parts store. Tested fine. Swapped in a new ignition coil. Still no spark.
I'm looking for suggestions on what to try next. I have the Haynes manual and it isn't very helpful. Could the photo optic sensor be the problem? It ran just fine when I parked it.
Thanks much!
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Re: Parked, now no spark. 1990 Montero 3.0L. Need some troubleshooting help
[Re: thermarest]
#845931
11/08/07 02:37 AM
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Joined: Sep 2001
Posts: 8,557
Forum Moderator
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Corrosion on ecu wiring?
Swolen ECU caps?
87 Raider 4D56td v5MT1
31's..Basically Stock
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Re: Parked, now no spark. 1990 Montero 3.0L. Need some troubleshooting help
[Re: thermarest]
#845932
11/08/07 01:00 PM
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Joined: Mar 2004
Posts: 217
Wheeler
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Hi,
I parked my 1990 3.0L V6 4-door 4WD Montero about 6 months ago. I charged up the battery and tried to start it. It cranks hard but won't turn over. I tested for spark and has none. Plug wires aren't new but newer. I swapped out for a new distributor cap & rotor, even though I didn't figure that was the problem they were cheap. I had the Ignition Control Unit tested at a local auto parts store. Tested fine. Swapped in a new ignition coil. Still no spark.
I'm looking for suggestions on what to try next. I have the Haynes manual and it isn't very helpful. Could the photo optic sensor be the problem? It ran just fine when I parked it.
Thanks much! Same happened to me I parked the truck for about six months it never started again did pretty much all the above and nothing.I put a spare ecu in and started right up
2003 Montero Limited White
2001 Montero GLS Diesel
1990 Montero Black Off Road Package.
1990 Montero Parts Truck.
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Re: Parked, now no spark. 1990 Montero 3.0L. Need some troubleshooting help
[Re: koolaid6666]
#845933
11/08/07 05:16 PM
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Joined: Nov 2007
Posts: 2
OP
Need a Spot
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Thanks for the ECU suggestion. I will investigate that route. I've looked in the Haynes book and via google for about 15 minutes. Can't find a solid reference to where the ECU is. Where is it??
Also, is there any chance that the actual distributor is bad? That was the only other think I could think of. Thanks.
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Re: Parked, now no spark. 1990 Montero 3.0L. Need some troubleshooting help
[Re: thermarest]
#845934
11/08/07 06:11 PM
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Joined: Jun 2005
Posts: 9
Need a Spot
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The ecu is under the glove box on the passenger side, 3 - 8MM bolts and then it drops down to the floor. Look for black stains or ooze under the capacitors.
mgpman
88 Trooper LS
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Re: Parked, now no spark. 1990 Montero 3.0L. Need some troubleshooting help
[Re: thermarest]
#845935
11/08/07 06:11 PM
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Joined: Sep 2005
Posts: 118
Wheeler
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on my '91 it is right under the glove box and above passenger floor below the heater blower, it has a cover over it.
'91 montero a/t cranked t-bars 31x10.5x15 212k
'90 toyota extra cab 320k v6 5 speed 31's 4x4
'99 expedition 17" alloys v-8 207k 4x4
'88 BMW 325iX 247k AWD
'59 Willys Jeep Koenig PTO winch and hardtop 28k
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