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240 Neutral safety switch problem

I might have a problem with my neutral safety switch on a 1989 245.
When trying to start the car it just clicks once at the starter/solenoid.
I have replaced battery cables checked and cleaned grounds.Battery good. 12.9 V
I tried to start in neutral on the AW 70 gear selector....just clicks once.
Would this one click problem be related to the neutral safety switch?








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240 Neutral safety switch problem

Try rowing the shifter through all the gears for a few minutes. That can clean the switch and perhaps solve your problem.
--
Will I buy another Volvo??? We'll see....








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240 Neutral safety switch problem

Art B. & jWalker,
It might be too soon to tell but since I cleaned that neutral safety switch on Saturday with D5 DeOxit spray cleaner the car has started flawlessly.

It's such head scratching problem that I think that have developed a bald spot.

Thanks for your help fellas with this 30 yr. old car .

Duck








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240 Neutral safety switch problem

Long ago, before I found out the replacement switches were so cheap, I cleaned one of them up. It was the backup light I was working on. Fix Your Backup Light Switch
--
Art Benstein near Baltimore

"Though it is true there are no stupid questions, it seems there is no shortage of false assertions to base them on." -Unknown








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240 Neutral safety switch problem

The click you are probably hearing is the starter solenoid trying to engage the starter motor and if the N/S switch were faulty, that wouldn't happen so you probably have a bad starter motor.

--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
hiperformanceautoservice.com or oldvolvosonly.com








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240 Neutral safety switch problem

I have a brand new rebuild starter I bought for my 93 940,,$65 mailed out if the postage is #$10,,,908-343-1939








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240 Neutral safety switch problem

I've been driving Volvo for over 43 years, so I have accumulated many parts from cars I chopped up over the years. I think there's 2 more starter/solenoids to try before that deal occurs.
My son gave me a great idea. The windshield tends to leak on the passenger side when it rains in summer. Maybe that computer that's under the glove box and attached to the side of the fender well is compromised and not properly grounding or a bad connection.
This non-start "click" business might be related to that computer.
Duck








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240 Neutral safety switch problem 200 1989

Duck,

Maybe you saw an image I posted showing the ignition computer getting drowned by a leaky wiper motor grommet. In any case, nothing in the passenger footwell would prevent your motor from cranking.

The problem in most cases is voltage drop on either the heavy cable between the battery terminal and the starter (caused by corrosion you might not see under the insulation) or voltage drop in the wire to the small terminal #50 at the starter, which would include any in the neutral safety switch.

Excessive voltage drop is caused by poor terminal connections or broken wire strands.

If you measure the voltage at the post where the large cable connects (not the cable terminal or nut) while a helper turns the key to the start position, you should see at least 11V if click-no-crank, or at least 9V if cranking is happening. Same at the rivet on the solenoid tab terminal #50 where the blue/yellow wire attaches.

Should you want to avoid bothering your helper, you can simulate the key in cranking position by using a jumper from the battery + terminal to the starter test terminal up by the oil dip stick.
--
Art Benstein near Baltimore

"I find television very educating. Every time someone turns on a set, I go into the other room and read a book." - Groucho Marx








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240 Neutral safety switch problem

Eric,
I forgot to mention that I replaced the starter/solenoid with I thought was a good used one . I thought that this was the problem with the solenoid on the old starter setup so I replaced with a good used starter/solenoid.
I should add this a intermittent problem. Seems to occur when the car sits outside in the ice & cold. I sprayed DeOxit all over the neutral safety switch.
The car is starting for now but we will see when I get off work late tonight.







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