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Technical => Drivetrain Tech => Topic started by: CougarGal on September 29, 2017, 09:07:11 AM

Title: Non-start question
Post by: CougarGal on September 29, 2017, 09:07:11 AM
Last night my 86 XR-7 decided it wouldn't start.  Turned the key and NOTHING.  No slow starter grind, no click, nothing but radio, clock and gauges all came on.  Without going through everything I looked at or thought of, it hit me that it had done this once before a LONG time ago so, I released the parking brake, let the car roll forward about a foot and, voila', she started right up.  Here's my question - what on earth would cause this?  I'm wondering if it's just one of those odd-ball little quirks that happen with this car occasionally or if maybe there's something about to go south that I need to check out.  Any advice is, as always, GREATLY appreciated.
Title: Non-start question
Post by: Sancho on September 29, 2017, 09:52:54 AM
Neutral safety switch?  I think that's the only starter inhibit, the other lockouts will let it crank if I remember correctly.
Title: Non-start question
Post by: Skunk on September 29, 2017, 10:34:51 AM
Had that happen when starter was on its way out. Had to tap the starter with the tire iron to get it to crank. Changed over to mini starter and had no issue since.

John
Title: Non-start question
Post by: Haystack on September 29, 2017, 01:36:36 PM
Could be the neutral safety switch. I've never had one go bad. Try popping the solenoid with a screw driver. If that works, then try adding power to the small wire on the solenoid. If those work then its neutral safety switch or the ignition switch.
Title: Non-start question
Post by: Tbird232ci on September 29, 2017, 05:12:37 PM
I have had similar issues a while back with the clutch switch.
Title: Non-start question
Post by: CougarGal on October 02, 2017, 09:08:41 AM
Quote from: Sancho;462974
Neutral safety switch?  I think that's the only starter inhibit, the other lockouts will let it crank if I remember correctly.

Thanks!!  That's what I'm leaning toward too after a bit more reading!!
Title: Non-start question
Post by: CougarGal on October 02, 2017, 09:10:48 AM
Quote from: Haystack;462976
Could be the neutral safety switch. I've never had one go bad. Try popping the solenoid with a screw driver. If that works, then try adding power to the small wire on the solenoid. If those work then its neutral safety switch or the ignition switch.[/QUOTE

Looks like it's the neutral safety switch :(      My poor lady is on her way to my favorite mechanic since both my repair manuals say it takes a special tool to remove and replace the silly thing without damaging it :(    Some days I HATE the Ford engineers :(
Title: Non-start question
Post by: CougarGal on October 02, 2017, 09:11:37 AM
Quote from: Tbird232ci;462981
I have had similar issues a while back with the clutch switch.

Thanks!  I'm assuming that a clutch switch and a neutral safety switch are the same thing???
Title: Non-start question
Post by: mcb82gt on October 02, 2017, 09:40:36 AM
Quote from: CougarGal;463007
Thanks!  I'm assuming that a clutch switch and a neutral safety switch are the same thing???

That is what I would assume.  I use the terms interchangeably.
Title: Non-start question
Post by: grutinator on October 02, 2017, 11:17:30 AM
I usually refer to a neutral safety switch when talking about automatics, it ensures the trans is in park or neutral before allowing power to the starter solenoid. A clutch switch only allows power to the solenoid if it sees the clutch is pressed, as you can start a stick with it engaged in any gear you want. But both do the same job of not allowing the car to start with a whole drivetrain directly engaged which could let it take off accidentally.
Title: Non-start question
Post by: CougarGal on October 04, 2017, 09:01:28 AM
Well, FWIW:  Turned out to be the starter solenoid.  Seems the neutral safety switch has been disconnected the entire 23 years I've owned the car and I never knew :O
Title: Non-start question
Post by: CougarGal on October 06, 2017, 01:21:58 PM
Well...here we go again :(  Evidently is was NOT the starter solenoid.  Car refused to start again this morning on the way to work when I stopped at a market.  Had to have her towed again.  So - we've ruled out the neutral safety switch and the starter solenoid.  Would the starter going bad cause this?  When I depress the clutch and turn the key to start, all I get are radio, clock and gauges.  I'm hearing NO sound, no click, no nothing like the car is even trying to start.  I would think that if it was something with the fuel supply (pump, inertia switch, etc.) that she would, at least, try to turn over.  It's like the ignition isn't even trying or I've turned the key to 'accessory.'    Key cylinder and ignition switch were just replaced a few months ago and I've had no problems until this started last week :(
Title: Non-start question
Post by: Skunk on October 06, 2017, 02:23:58 PM
Next time it happens....grab your tire iron....lay down to the rear of the passenger front tire and give the starter a couple of wacks. Then try to start again. No start....give it  couple more wacks and try again.

The starter motor is likely good but either the Bendix (am I still allowed to call it that?) Is bad or the drive gear and or shaft is gunked up. This is assuming it's the old style starter.

John
Title: Non-start question
Post by: CougarGal on October 06, 2017, 03:10:53 PM
Quote from: Skunk;463105
Next time it happens....grab your tire iron....lay down to the rear of the passenger front tire and give the starter a couple of wacks. Then try to start again. No start....give it  couple more wacks and try again.

The starter motor is likely good but either the Bendix (am I still allowed to call it that?) Is bad or the drive gear and or shaft is gunked up. This is assuming it's the old style starter.

John

THANKS!  It's an '86 XR-7 so I think you may have hit upon an idea!!  We had a '59 Chevy when I was growing up and we used to keep a ballpeen hammer handy to whack the solenoid when it would stick so, at least, I have experience with this maneuver :O
Title: Non-start question
Post by: Haystack on October 07, 2017, 02:35:38 AM
Again, popping it with a screw driver would rule out both the ignition switch and the starter solenoid. You can just put the key in the run position (making sure its not in gear, or it will run you over or drive off without you) and stick a piece of metal acrossed the two big solenoid posts. If it starts, either the starter solenoid or ignition switch isnt working.

Btw, it will spark, so don't wanna stick your face right down in there when ya do it. Might save ya from another tow truck though.
Title: Non-start question
Post by: CougarGal on October 10, 2017, 09:05:53 AM
Quote from: Haystack;463119
Again, popping it with a screw driver would rule out both the ignition switch and the starter solenoid. You can just put the key in the run position (making sure its not in gear, or it will run you over or drive off without you) and stick a piece of metal acrossed the two big solenoid posts. If it starts, either the starter solenoid or ignition switch isnt working.

Btw, it will spark, so don't wanna stick your face right down in there when ya do it. Might save ya from another tow truck though.

FINALLY figured it out.  Something as simply as a loose wire going to the clutch switch which is explains why for several days the car would start if it could be moved a bit or towed somewhere :(    All is now good!  I HATE electrical problems so it AMAZING me that I love this car the way I do :O