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1995 Saturn SL1

Tiny
DREESE81
  • MEMBER
  • 1995 SATURN SL1
  • 4 CYL
  • 2WD
  • MANUAL
  • 160,000 MILES
1995 Saturn SL1 after car runs for 10-15 mins if you cut it off it will not restart for about 45mins to an hour. The Catallitic Converter has been removed Could this be the cause or what do I need to check. I tested the ignition module already it tested fine.
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Saturday, December 25th, 2010 AT 5:06 AM

10 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So when it doesn't start does it crank no start?Or is it a no crank no start?
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Saturday, December 25th, 2010 AT 5:02 PM
Tiny
DREESE81
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Sorry it has a 1.9L not a 2.2L It cranks but refuses to starts. I thought it might be the crank sensor, until I put it on a code reader today and it came up with "Coolant temp signal voltage low or short circuit"
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Sunday, December 26th, 2010 AT 10:15 PM
Tiny
SATURNTECH9
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What is the exact code number you have?Sound's like you have a bad coolant temp sensor or a bad wire or connector going to it.
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Monday, December 27th, 2010 AT 1:42 AM
Tiny
DREESE81
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The code reader I used doesn't give the P0000 format, it only gives what codes definitions. Could a coolant temp sensor cause the car to crank and not start?
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Monday, December 27th, 2010 AT 1:48 AM
Tiny
SATURNTECH9
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Yes a coolant temp sensor code cause the car to crank and not start or bad wiring to it or a bad connector. The P then a four digit number is obd2 format your car is obd one so you would have a two digit number. If you flash the code's out it will give you number's.
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Monday, December 27th, 2010 AT 8:33 AM
Tiny
SATURNTECH9
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Your car is obd1 format.
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Monday, December 27th, 2010 AT 8:34 AM
Tiny
DREESE81
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The OBD I code was 15. I replaced The Manifold/Air Charge Temp Sensor. Seems to have fixed that problem. I just wanted to say thanks for the input SaturnTech9. My next fix will be the top motor mount.
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Tuesday, December 28th, 2010 AT 1:32 AM
Tiny
SATURNTECH9
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So you replaced the temp sensor in the air box?When you had a code for your coolant temp sensor?If that's the case that make's no sense.
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Tuesday, December 28th, 2010 AT 2:06 AM
Tiny
DREESE81
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No the sensor was in the manifold, near the temp gauge sensor. I was just saying what sensor it is. I'm guessing the one sensor has two possible since it was located as a air. Charge temp sensor and a manifold temp sensor.
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Tuesday, December 28th, 2010 AT 2:34 AM
Tiny
SATURNTECH9
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The coolant temp sensor screw's into the cylinder head it's the bottom of the two sensor's right below the upper radiator hose. The one with two wire's going to it a yellow wire and a black wire. You are correct that same sensor is the same one in the air box and the transmission so it has three use's on your engine.
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Tuesday, December 28th, 2010 AT 6:07 AM

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