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Volvo 245 help

  #1  
Old 02-01-2019, 04:13 PM
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Default Volvo 245 help

Hi,
So I have a 1981 volvo 245 & Iíve run into a bit of a problem..

The car was idling rough upon start up and wanted to stall sometimes, the temperature gauge was only moving about a cm up(always in the cool), and I was getting really poor gas mileage.

I went ahead and changed the coolant thermostat, started the car up, idle evened out & was running great.. the temperature gauge climbed right where it was supposed to. After a few minutes of idling the car misfired and stalled out. Now it will not start at all, just keeps turning over..

side note: when removing the radiator hose i disconnected one of the spark plug wires to access the bolt, coolant had spilled around this area but i wiped everything up.

Any help would be greatly appreciated.

Thanks

 
  #2  
Old 02-01-2019, 05:24 PM
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it takes spark, fuel, and compression to run.... so you need to verify you have all 3.

pull a spark plug right after trying to start, if its wet you have fuel. now hook that spark plug back up to the wire, hold the plug body against an engine ground, have someone crank, and see if you have spark.
 
  #3  
Old 02-01-2019, 06:08 PM
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Pierce,

Just now I turned the key and it started up, idled for a minute, then stalled out. I'm assuming there's moisture around cylinder 1's ignition wire(the one I removed to replace thermostat). If so, would the moisture just need time to dry out?

Another question, are you familiar with the location of the coolant temp sensor on this model? Looks to be under cylinder 2 but not sure
 
  #4  
Old 02-01-2019, 07:26 PM
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Originally Posted by spenc9310 View Post
Pierce,

Just now I turned the key and it started up, idled for a minute, then stalled out. I'm assuming there's moisture around cylinder 1's ignition wire(the one I removed to replace thermostat). If so, would the moisture just need time to dry out?

Another question, are you familiar with the location of the coolant temp sensor on this model? Looks to be under cylinder 2 but not sure
Even if cyl. 1 was fouled it still would run on 3 cylinders. You've got some other issue.
 
  #5  
Old 02-04-2019, 08:50 PM
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Ended up being a bad ignition coil. Replaced, running solid now. Though still, thereís a slight rumble in the idle.. could it be if the car was running with poor spark for so long that thereís unburned fuel in the catalytic thatís distrusting the idle?

Thanks for your input
 
  #6  
Old 02-04-2019, 10:00 PM
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one quick high rpm acceleration should clear any unburned fuel in the cat.

an extended 'italian tuneup' should clear any fouled spark plugs.
 
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