Question about 2003 Saturn VUE

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O3 saturn vue v6 all wheel drive. suv will shut off while going down road. put car in nut, shut off key and restart, will not stop again, for a few miles. have put in new fuel pump, new filter, cleaned out fuel lines. cleaned throtle body 2 times. put in new maf sensor. no service engine soon light is on. i am 64 year old retired mech. getting very tired of bending over finder. please do you have any ideas.

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  • shane
    shane Oct 07, 2017

    have you tried the crankshaft position sensor? i had almost exact same conditions last year that was the fix after spending a ton of money on replacing other components on the 03 model its located under the oil filter

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  • 13 Answers

Crankshaft position sensor is the fix for that pretty sure had exact same issue

Posted on Oct 07, 2017

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  • 7 Answers

Check for vacuum leaks at upper plenum halves . I just got one in shop with that kinda problem and it has lean codes in memory along with throttle code . it is leaking at spot below throttle body and top left corner . engine has a slight higher idle . codes are PO171,PO174,PO507 AND HAVE NO GASKETS SETS FOR REBUILDING UPPER PLENUM ..

Posted on Sep 12, 2012

  • James Crisp
    James Crisp Sep 12, 2012

    check for vacuum leaks at upper plenum halves . I just got one in shop with that kinda problem and it has lean codes in memory along with throttle code . it is leaking at spot below throttle body and top left corner . engine has a slight higher idle . codes are PO171,PO174,PO507 AND HAVE NO GASKETS SETS FOR REBUILDING UPPER PLENUM ..

  • James Crisp
    James Crisp Sep 12, 2012

    I used carb cleaner to find leak a change of idle ,Propane will do the same with hose

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6 Suggested Answers

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Posted on Jan 02, 2017

emissionwiz
  • 81400 Answers

SOURCE: 2002 saturn vue

The code doesn't say that the O2 sensor needs to be replaced, it is telling you the O2 is showing that the fuel system is either to rich, (to much fuel) or to lean (not enough fuel), so the sensor is not the issue, most likely something is either wrong with the fuel injectors such as dirty nozzles or there is a vacuum leak or one of the fuel control sensors like the MAF has a problem, it can and is very difficult to sort this out, the Saturn dealer has the diagnostic equip to get the root cause of the problem, are they the ones who did the work? if not take it to Saturn and even though they cost more they won't spend as much time to find the problem, outside shops can't afford this special testing gear, cost is way to high, about $50,000 for the electronic service bay diagnostic systems Saturn has. One last point the computer or PCM as we call it is very rarely the problem, about 4% of the time in fact, very low failure rate.

Posted on Nov 06, 2008

  • 14 Answers

SOURCE: after running, saturn 2003 vue wont restart for about half hour

two things it might be 1? crank shaft sensor or 2? camshaft sensor

Posted on Jan 18, 2009

emissionwiz
  • 81400 Answers

SOURCE: service engine soon light on 2003 Saturn Vue

Here is the definition of the code in GM manual:
P0128 - Coolant Thermostat Below Thermostat Regulating Temperature, this indicates the engine is running cold, u need a thermostat

Posted on Feb 12, 2009

  • 4 Answers

SOURCE: need a 03 3.0 v6 awd throttle body, linkage, sensor

Buy it new from many places Search Saturn Parts call local Dealer .
Happy Easter

Posted on Apr 11, 2009

rteemon
  • 578 Answers

SOURCE: Service Engine light on Green line 2007 Saturn Vue

take the ground line of the battery and press the brake for a few minutes and if the life is still on have the vehicle scann and clear code and have the emission components for the vehicle check

Posted on Sep 12, 2009

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