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Strange no start problem 200 1990

Lately I have been having a strange no-start scenario. The weather has warmed up lately and probably has something to do with it. When first cranking the car in the morning it starts fine, after driving and parking for anywhere from 15 minutes to an hour is when the problem usually occurs. The car does not even attempt to crank or turn over, just a click each time the key is turned. After opening the hood and waiting ~5 minutes the car will eventually crank. I have a new fuel pump relay (and can hear it working) so it is not that. My ECU shows no codes, the EZK shows code 2-2-4 (coolant temperature sensor signal missing or faulty). Could this whole problem be the coolant temp sensor?








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Strange no start problem ... can become friendly, if you do! (:-) 200 1990

Hi,

I need to ask a few questions.
Does the car have around 200k on the odometer?
By chance do you know if the starter has never been replaced?
If so, the problem is most likely lies in the solenoid on the starter. It has worn just enough to not always make up its contacts inside it.

When you go to crank you may or may not hear a click and the panel lights go completely out.
You might think you have a dead battery but the lights are staying bright in broad daylight.

If you can find a flat iron on a piece of metal about 3/16” thick and 18” to 24” in length will weigh about one pound.
I made one up that is completely insulated with black tape used to wrap around black iron plumbing pipe. It is thin to slips down by hoses and not conduct power in case the battery cable terminal is naked down there.
This works fine until the solenoid gets really bad off or you get tired of the inconvenience.

You can try thumping the solenoid and that should start the car after a couple raps on it. If this works, whether hot or cold, then you know you found the problem!
The starter solenoid or the whole motor needs servicing.

It has been my experience that the rest of the starter can be in good working order but there can be a lots of carbon inside from brush wear.
I usually find them to still have plenty of length!
This depends on the tune of the car over the years of service, that dictates the amount of wear in there!
It comes down to only the solenoid is running out of enough stroke inside after 20 to 25 years.
There is a slight modification that can be done to the solenoid o keep it working.
I have written it up before on to other posts for the same issue.

FYI
On 240’s, up too, but not including the 1993, there is a remote start wire, located near the oil level dip stick on the firewall harness. It just sticks out there going to nowhere.
It has an insulated tip that needs to be defeated internally to get power on that wire.

This remote wire can be used to roll the starter over anytime you can connect a wire from the positive battery post to that wire.
You will need a wire long enough to reach that distance.
If and When you do this, the starter engages the the start motor, so make sure, you are out of a manual gear, in Park or Neutral on an automatic transmission.
Putting or leaving the ignition switch in position two (run) the engine will start and keep running!
Be knowledgeable of what you are doing!

You can rapidly jump power onto this wire and maybe get the solenoid might to connect up without having to have a rapping tool.
As far as I know, Having a person in the car, that listens to that type music, doesn’t work! (:-)

Hope this is it and Good luck!

Phil









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Strange no start problem ... can become friendly, if you do! (:-) 200 1990

The odometer does have over 200,000 and I don't believe the starter has ever been replaced! I will definitely check that as it seems like one of the most likely culprits.
Thank you for all the information... It's always nice learning more intricacies of this car!








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Strange no start problem WHOOPS NMI 200 1990








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NMI 200 1990








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Strange no start problem 200 1990

Test voltage at battery. Also check wiring condition and grounds.

Test the starter too. Your problem mirrors what happened to my 850’s starter. Started fine cold. Wouldn’t crank warm.
--
Will I buy another Volvo??? We'll see....








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Strange no start problem 200 1990

Starter, Battery, and or charging system problems.
Dan








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Strange no start problem 200 1990

Check both of the ground straps








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Strange no start problem 200 1990

I have had a history with grounds being loose... I will give those a look.








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Strange no start problem 200 1990

the 2 are not related. the coolant temp sensor is not in the starter circuit. bad battery, cable and/or starter is why it won't crank. good luck, chuck.








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Strange no start problem 200 1990

If there is an error on the EZK, is it not possible that it is causing ignition issues? good luck, chuck.








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Strange no start problem 200 1990

ignition is not in the starter circuit either. you may have 2 problems but the priority is the no crank when hot.







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