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My2002 Saturn L300 keeps shutting off

Tiny
YOLANDA
  • MEMBER
  • 2002 SATURN L300
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
My2002 saturn L300 loses power while drivin down the road. Have replaced : fuel filter, crank shaft sensor, thermostat, oxygen sensor bank1, and also a fuel pump about a year ago. Just dont know what else to do literally about to lose it
Sunday, February 20th, 2011 AT 4:14 AM

13 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
So do you have any code's?SO when you lose power does the car just bog down when when you press the gas down?Does it ever not shift unless you let off the gas?
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Sunday, February 20th, 2011 AT 5:18 AM
Tiny
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Yes I've had codes and thats what leads me to replace all these sensors. It literally just cuts off while im driving. And yes some times I do have to let off the gas in order for it to shift.
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Monday, February 21st, 2011 AT 8:47 PM
Tiny
SATURNTECH9
  • MECHANIC
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Usually if you have to let off the gas for it to shift it's a clogged cat. So what are the exact code number's you have.
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Monday, February 21st, 2011 AT 10:07 PM
Tiny
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Codes we P1780, P0128, P0727, p0335, p0102, p0421, and I also replaced the mass airflow sensor. So can the clogged cat converter cause it to shut down while driving too?
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Tuesday, February 22nd, 2011 AT 12:39 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
The clogged convertor can cause a stalling lack of power and make you have to let off the gas to make the transmission shift. The code P0421 is a cat code the p0128 is usually a bad thermostat. The P1780 is a torque reduction command. The P0727 is ENGINE SPEED CIRCUIT - NO SIGNAL. The code P0335 is CKP SENSOR CIRCUIT your crankshaft sensor. The p0102 is MAF SENSOR CIRCUIT LOW VOLTAGE mass airflow sensor. So did you ever clear the code's after you replaced all those part's?
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Wednesday, February 23rd, 2011 AT 2:14 AM
Tiny
YOLANDA
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Yes the codes were cleared but the car broke down again, then comes the service engine light on again have not had any diagnostic yet just confused and dont kno if I need to put any more money into this vehicle, as parts and labor can become very expensive for this particular car. These were all codes from auto zone
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Wednesday, February 23rd, 2011 AT 3:19 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
So you replaced all that stuff a year ago or just the fuel pump a year ago?
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Wednesday, February 23rd, 2011 AT 7:26 AM
Tiny
YOLANDA
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  • 7 POSTS
Just the fuel pump a year ago & all the other parts just a week ago
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Wednesday, February 23rd, 2011 AT 12:11 PM
Tiny
SATURNTECH9
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So when shuts off while driving does it restart right away or do you have to wait for it to start.
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Wednesday, February 23rd, 2011 AT 5:55 PM
Tiny
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I have to wait maybe thirty minutes or so then it runs for about 20 minutes and shuts off again.
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Thursday, February 24th, 2011 AT 11:51 AM
Tiny
SATURNTECH9
  • MECHANIC
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So did you replace all these part's yourself?Or have someone do it for you?Because the stalling sound's like a bad crank shaft sensor the code p0128 sound's like a bad thermostat all the stuff you said you replaced.
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Thursday, February 24th, 2011 AT 6:28 PM
Tiny
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  • 7 POSTS
No my mechanic installed the parts, im a female, he tells me that the fuel pump is bad again he gives me all my old parts once installed with the new ones do you think the fuel pump could possibly be gone again cause the shop that replced it a year ago wit a 1 yr replacement warranty swears that is not the problem I think they just didnt want to replace the part which cost me $600.00 for parts and labor and thats why I found a new mechanic
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Thursday, February 24th, 2011 AT 8:56 PM
Tiny
SATURNTECH9
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Well the code's P0335 and the P0727 isn't going to a bad fuel pump.I have seen bad crank shaft sensor's set that code cause the car to die and have to wait til it cool's down before it start's. You can test the crankshaft sensor with a ohm's meter when it get's hot die's and won't start to see if it's bad.I find it really strange that the code's that are setting are the same code's that set most commonly from the parts that have already supposedly been replaced.I would have that crank shaft sensor tested when it's hot and won't start.I think I would find a new guy to fix your car because replacing all those part's and you still have those code's is not right.
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Thursday, February 24th, 2011 AT 9:08 PM

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