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Toyota 4Runner Starting/Stalling Problems

33 messages,  Last post on Nov 03, 2009 at 5:10 PM

You are in the Toyota 4Runner Forum. Your Hosts are steve_ & tidester

What is this discussion about? Toyota 4Runner, Electrical, Engine, SUV


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#1 of 33
4Runner Starting Mystery - about to give up! by trblss
Jul 21, 2006 (9:54 am)
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I have a ’91 4Runner 4WD V6 with 190Kmiles (original owner) and have a starting problem. Once the truck warms up to operating temp (ambient temp above 80*F) then off for a few minutes (like driving to the gas station to fill up) it would not start. The solenoid will “pop” but no starter motor activity. I rebuilt the solenoid with Toyota parts…worked for 2 weeks…same problem…hmm...replaced starter motor with remanufactured one from Orielly Auto (house brand)…worked for 3 weeks…same problem. Rebuilt solenoid with Toyota parts…worked for about 2 weeks. Took it back for an exchange...same result week after week. Then I went to Pepboys and bought a reman’ed Bosch…This time the solenoid would not “Pop”…I tapped on the solenoid it worked…hmmm…took the starter back and got another…same results. I have rebuilt the ignition switch, added a new ground strap directly to the starter mounting bolts, added power wires to the starter solenoid and motor and replaced the battery. Nothing seems to work! I am getting 11.92V to the solenoid and 12.76V to the starter motor regardless of starting or not. I’m about to throw in the towel. Any ideas? I will consider anything at this point…Any direction would be greatly appreciated. Thank you!
#2 of 33
Re: 4Runner Starting Mystery - about to give up! [trblss] by steve_ HOST
Jul 21, 2006 (10:21 am)
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Replying to: trblss (Jul 21, 2006 9:54 am)

Take a look around the "No Start" Problems discussion while waiting for responses in here.
#3 of 33
Re: 4Runner Starting Mystery - about to give up! [trblss] by trblss
Aug 03, 2006 (10:03 am)
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Replying to: trblss (Jul 21, 2006 9:54 am)

OK, I got it. I installed a 30A fog lamp relay (8$) between the ignition switch and the neutral start switch. Works better than new. I guess the ignition switch is wearing down, but 8$ sure beats $95 for a new ignition switch. I can only speculate there is a direct relationship between heat and resistance on the ignition switch.
#4 of 33
Re: 4Runner Starting Mystery - about to give up! [trblss] by steve_ HOST
Aug 03, 2006 (10:04 am)
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Replying to: trblss (Aug 03, 2006 10:03 am)

Thanks for reporting back; good detective work!
#5 of 33
95 4runner not starting at all by herocouldsave
Aug 07, 2006 (9:06 pm)
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I have a 95 4runner that has been working fine the last couple of weeks then i went out to start it one day and i put the key in and turned it on, the dash lights came on. then when i went to start it turn the key and everything went dead. there was no click no try nothing. it had sat for a couple of days during 100+ degree weather so i wonder if that has anything to do with it. the battery is good and i am going to check the alternator and starter this week. any other ideas??
#6 of 33
Re: 95 4runner not starting at all [herocouldsave] by trblss
Aug 10, 2006 (5:48 am)
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Replying to: herocouldsave (Aug 07, 2006 9:06 pm)

If you’re having intermittent problems cranking that you can relate to temperature, my best guess is excessive electrical resistance is the problem. It can be corroded battery terminals, worn ignition switch, poorly designed/worn relay, etc. Before getting too involved with relays, switches, starters, etc, I would check the easy stuff first. Get a schematic and check each component in the circuit. Also, you might want to check the neutral start switch. Good Luck and please post any results.
#7 of 33
Re: 95 4runner not starting at all [herocouldsave] by 96runner
Jan 03, 2007 (6:23 am)
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Replying to: herocouldsave (Aug 07, 2006 9:06 pm)

I had the same problem with my 96. I found out that it was just a loose battery connection. Like the other response said, just check those connections first.
#8 of 33
My 95 4runner has an odd problem by ericferguson
Feb 11, 2007 (8:15 am)
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Please help me, I have no clue what is wrong with my car....when im driving down the road my battery light comes on, along with my anit-lock brack light and sometimes even my parking break light. Everything gets brighter along with the headlights and dash lights. Also the radio will cut off but all this happends only when I accelerate. Whenever I get a new battery it works for about 3 days right...but then the problems start...in the mornings it wont start....i can jump it off....but it wont start on its on...if i stop somewhere and cut the car off for about a maximum of 30 min. the battery goes dead....but if I stop and cut the car off and try to start it within 30 min. it will start back like the battery hasnt drained out yet....ive replaced the battery a few times so its not that...I Havent had the alternator tested at autozone or antyhing but ive put an electrical meter on it and its charging fine...so if anyone has any ideas of what this might be please let me know...
#9 of 33
Re: My 95 4runner has an odd problem [ericferguson] by trblss
Feb 13, 2007 (12:47 pm)
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Replying to: ericferguson (Feb 11, 2007 8:15 am)

Have the alternator verfied by a technician. It sounds like a failing voltage regulator. Please post any results.
#10 of 33
Re: My 95 4runner has an odd problem [trblss] by mike805
Feb 14, 2007 (5:32 am)
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Replying to: trblss (Feb 13, 2007 12:47 pm)

This sounds like a problem I had with my Explorer. There is a relay that is supposed to disconnect the power when the ignition is shut off that had failed in the on-condition. When this happens the battery is drained in a few hours. You can check it by making sure everything is shut off including the doors shut and bulb removed if there is a light under the hood. Then disconnect one battery terminal and connect a current meter between the disconnected battery terminal and the cable you just disconnected. If there is any current more than about 30ma-50ma there is a problem with the relay. Hope this helps.

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