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Ignition switch question?

 
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  #1 (permalink)  
Old 02 Aug 2017, 09:35 pm
Cool Cruiser
 
Join Date: Jul 2011
Location: somerset,ky
Posts: 223
Default Ignition switch question?

my Pt will crank a bit then shut down no start and its getting fire to the plugs..I had an issue with the key switch awhile back with the key not turning all the way off and ky not coming out of switch..

my question is.

1.would a bad key switch act like this? crank with spark and no start?
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Old 02 Aug 2017, 10:58 pm
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Location: Thousand Oaks, CA
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Default Re: Ignition switch question?

I would suggest if you are getting spark spray some starter fluid in the throttle body and see if starts to run. Your fuel pressure should be 58 +/- 5 PSI.
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Old 03 Aug 2017, 12:20 am
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Default Re: Ignition switch question?

Check to see if your timing belt hasn't broken.
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Old 03 Aug 2017, 08:23 am
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Default Re: Ignition switch question?

Quote:
Originally Posted by LionPT View Post
Check to see if your timing belt hasn't broken.
This threw me off for a second. I thought the old cars with distributors (2.2) wouldn't have spark with a broken timing belt because nothing would spin the magnetic wheel in the distributor. Would the PT? Doesn't the magnetic cam position sensor still direct the spark? I guess that they would still have spark since you can disconnect the cam position sensor and it will still run and when mine was bad it would still "limp home" under like 3,000 rpm

It is funny that they got rid of the distributor, but kept the Hall effect. In my experience, every serious distributor problem I have ever had related to the Hall effect sensor.

I always knew when the timing belts broke because the engine spun faster when it didn't have to spin the belt and cam.
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Old 03 Aug 2017, 08:47 am
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Join Date: May 2011
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Default Re: Ignition switch question?

I think it may coincide with the crankshaft sensor
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Old 03 Aug 2017, 05:45 pm
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Location: somerset,ky
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Default Re: Ignition switch question?

timing belts not broke..
fuel pressures fine
wont start with starting fluid
new coil,wires,plugs.
new cam sensor

I haven't replaced the crank sensor yet..
I guess I will do that next. this weekend

I will let you know the results..thanks
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Old 03 Aug 2017, 06:18 pm
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Join Date: Aug 2014
Location: Thousand Oaks, CA
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Default Re: Ignition switch question?

Quote:
Originally Posted by drumrooster View Post
my Pt will crank a bit then shut down no start and its getting fire to the plugs..I had an issue with the key switch awhile back with the key not turning all the way off and ky not coming out of switch..

my question is.

1.would a bad key switch act like this? crank with spark and no start?


Quote:
Originally Posted by drumrooster View Post
timing belts not broke..
fuel pressures fine
wont start with starting fluid
new coil,wires,plugs.
new cam sensor

I haven't replaced the crank sensor yet..
I guess I will do that next. this weekend

I will let you know the results..thanks
Check to make sure you are getting spark to all four cylinders.

If you are getting spark in every cylinder I would suggest you do an engine compression test in all four cylinders. Your timing belt might have slipped a few teeth making the engine cylinder compression too low to fire.
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Last edited by ptcruisersteve; 03 Aug 2017 at 06:22 pm.
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Old 03 Aug 2017, 10:03 pm
Cool Cruiser
 
Join Date: Jul 2011
Location: somerset,ky
Posts: 223
Default Re: Ignition switch question?

I had already done fuel.spark,compression..PCM..!!CPS..

pretty much everything but the CPS so today I put it on blocks and started looking for the crank sensor..I know its supposed to be on the front behind the starter..well I was looking down at the starter and pulled the wiring harness back from the top of the starter so I could see the block and BANG the dang wire from the ignition was not on the solenoid ?? still couldn't find it? it had came off and fell down in the front and was sticking back under the starter..I guess the wind while driving had blew it back..the connector was busted and would barely stay on the post so I crimped it a bit and put it back started right up..FOR CRYIN OUT LOUD!! I even replaced the PCM$$ I guess its been very loose for months so that's why the start then no start till it finally fell off..=no start

I had walked away from this car for 4 months evne had a professional scan done and they didn't catch it..I didn't think it should even try to start with that wire off?..man I'm so happy,,

THANK YOU to everyone whos replyed to my post on this car for the last several months,,,remember it would crank and stutter but not start??

Have a great weekend guys..
rckstein and L2fish like this.
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Old 04 Aug 2017, 05:30 am
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Join Date: May 2011
Posts: 228
Default Re: Ignition switch question?

Great news. I too looked for the crank sensor once and couldn't find it
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Old 04 Aug 2017, 07:38 am
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Location: Lake Wales, FL
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Default Re: Ignition switch question?

Great news, man! Congratulations on the find. It's just too bad you had to spend all that time and money before it came to that. Now you can start terrorizing the streets of Somerset!
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