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Saturn engine repair questions and answers

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  • keithguinn13
    keithguinn13 - 2000 Saturn SL1 - Engine - 1/26/2015
    I know quite a bit about cars and I'd love to get into working on my own more (I have a little bit). I can't seem to
    find anyone to give me advise on how to start? I can't find anyone here in vegas and shops don't respond! thanks.
    • jdl
      1/26/2015 jdl
      If you want to be a mechanic go to tech school. A lot of schools have job placement help after you finish. I'm not sure if that is what your asking?

      A lot of databases have repair info and wiring diagrams for your vehicle. Alldata and mitchel to name a couple. I believe a one year subscription for your vehicle is 20 something bucks.
      1/26/2015 keithguinn13
      I'd say it's more of a hobby than a career choice for me. I do have the Haynes book on my car I just don't wanna take it apart and break it lol. I know how to quite a bit of stuff.
      1/26/2015 jdl
      You know what they say, if it ain't broke, don't fix it.
  • tim
    tim - 2001 Saturn SL2 - Engine - 1/21/2015
    Car starts but dies immediately,dash lights flicker real fast when key is on.
    new fuel pump,combo filter and regulator,changed computer,ignition lock and switch,however they were used, no change! starts up smooth every time, but dies immediately.
    0 answer
  • kmcneil
    kmcneil - 2000 Saturn SL - Engine - 12/30/2014
    Idleing high when clutch is hit
    when I changed the clutch it started idleing high and slowly got worse. now when I hit the clutch it will spike at 2600 rpm and then when the car comes to a complete stop it will slowly reduce idleing to 1600rpm. As I start to proceed to go it acts fine until I hit ...
    0 answer
  • Jason
    Jason - 2001 Saturn SC2 - Engine - 12/23/2014
    Engine hesitates every time I take off, like the engine dies for a split second, sometimes it stalls out.
    Car runs fine otherwise, I had a misfire code & changed plugs, wires, one coil, cleaned coil contacts to block& changed fuel filter/pressure regulator. Took it to a shop, engine light went off when I tuned it up. The mechanic couldn't figure it out with his ...
    • Jimm
      12/23/2014 Jimm
      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • Glenn T
    Glenn T - 2000 Saturn SW2 - Engine - 12/22/2014
    Idles and accelerates ok when i try to keep it at a consistent speed 30 to 45 it bucks.
    car has 168000 on it, the problem doesnt happen when the motors cold only when at op temp. i replaced the plugs didnt make a difference. noticed the problem after i had the exhaust fixed (flex pipe and after the cat back) after 6 months of driving with serious ...
    • Teddy B
      12/22/2014 Teddy B
      Have you considered having a shop look at data & doing
      the required testing to find any problems ?

      That is a lot of miles & years for a 4 cyl--almost retirement time for that motor

      You can not have any leaks anywhere for two weeks,let alone 6 months
      Teddy B
      12/24/2014 Glenn T
      It had only a foot of pipe after the cat and a hole the size of a silver dollar in the flex and I drove it for six months, maybe you should retire to a shop and have them figure out your problem, by the way I changed the o2 sensor runs like new
  • Jason
    Jason - 2001 Saturn SC2 - Engine - 12/20/2014
    Engine hesitates every time I take off, like the engine dies for a split second, sometimes it stalls out.
    Car runs fine otherwise, I had a misfire code & changed plugs, wires, one coil, cleaned coil contacts to block& changed fuel filter/pressure regulator. Took it to a shop, engine light went off when I tuned it up. The mechanic couldn't figure it out with his ...
    • Teddy B
      12/11/2014 Teddy B
      Your going to have to go for a road test with the scan tool & look at all the data

      Look at fuel trim,oxygen sensor switching times more than just voltage,look for
      cylinder misfires & more

      How much data is in a 2001 Saturn,you would have to see the scanner

      Is the converter partially blocked or even working

      I would guess you have cylinder misfires as you changed only one coil

      OBD Codes won't tell you what coil is bad in many cases

      I have seen scan tool data not help & then you walk a new coil
      or change them all

      What did the mechanic do
      What did you ask to be done
      Did you go for a ride with you driving & the mechanic
      along with scannner-that is a must to gather what your
      experiencing so they can continue on when you leave the car

      Don't see many ECM/PCM/ECU failures

      Was it smoked for vacuum leaks?

      Fuel Pressure checked?

      TPS back probed & scoped?

      Maf check out?

      Is the crank sensor dropping out-have to rig up a scope with long
      wires & road test
      Teddy B
      12/12/2014 Jason
      When you say converter, do you mean the torque converter? I'm not sure the mechanic drove the car with the scanner. I told him what the car was doing & that's about it. He said it may be the transmission or the ECM, but It does it slightly when in park, more pronounced when it has a load on it so I don't think it's the trans. it's shifting fine & no slippage. There were no misfire codes. Thanks for the info. I will take these tips to him & see if we can figure it out.
      Teddy B
      12/12/2014 Teddy B
      Exhaust Converter
      You always go for a ride with you driving & the mechanic along for the ride
      You do not need codes to have problems or do the required testing
      Do a Cylinder Leak Down Test--to check for valve problems
      Do a Cylinder Contribution Test
    • Jason
      12/13/2014 Jason
      I don't believe it's a blocked catyletic converter since it has plenty of power otherwise. But I can disconnect the exhaust before the converter & drive it to rule that out before I take it to the dealer Monday to let them check it out. I wasn't able to ride with the mechanic, I had to drop the car off & was at work when they checked it out. Luckily I know him and he didn't charge me for his analysis. I have the car back at home now.
    • Jason
      12/20/2014 Jason
      I took it to a GM dealer, mechanic rode in car with me with scanner hooked up so I could show him what it was doing. Everything looked normal, they kept the car for a week, & did more testing. No codes showing on scanner. There are no cylinder misfire codes coming up. They inspected all wiring, connected an oscilloscope to crank sensor & cam sensor circuits & ran engine, both ok. Checked MAF sensor,02 sensors & 02 purge solenoids, Air Pump Valve, all checked out good. Catalytic Converter ok. Checked for vacuum leaks, ok. Reprogrammed PCM with updated calibration for low power concern, per bulletin. Fuel pressure ok @ 60 lbs. Still didn't isolate the problem. They gave up on it, short of opening the engine, said it may be due to carbon buildup in EGR passages/Intake, or Air Pump. Does this sound like it be the problem?

      (I changed the TPS before bringing it in. I took EGR off & it has air flow/vacuum at intake. )
  • dmasa78
    dmasa78 - 2001 Saturn L100 - Engine - 12/15/2014
    My blower motor isn't getting power so I have set up a bypass. How do I properly do that with blowing the fuse?
    blower mower bypass troubleshooting My heat has gone out and we have figured out that the blower motor isn't getting power. Due to financial constraints, we have wired the blower mower to a switch in the car. The positive is connected to the outside of the ...
    0 answer
  • jcronan
    jcronan - 2001 Saturn LW300 - Engine - 12/11/2014
    P0301 and P0304 code reads
    I have a 2001 Saturn LW300, which has recently given me two codes (P0301 & P304). When I purchased the car, driving it home the P0301 code came on. I changed the spark plugs and the code went away for a while. A symptom I have noticed is that the car will sometime ...
    • Teddy B
      12/11/2014 Teddy B
      Please believe I am the last person to suggest installing any parts without doing
      any testing to confirm a parts failure or some type of problem

      That Said: It is almost 15 years old

      I would first do a cylinder leak down test--to confirm the valves seal
      I would replace all spark plugs--your did that
      I would replace all ignition coils if they are over 6 years old or you
      have no professional tools to work with
      I would replace the exhaust converter & all O2 sensors

      The injectors are your call-the only sure way to clean them & see the
      actual flow pattern is to mail them away for Ultra-Sonic Cleaning

      If I understand what you said your just got it

      Not to be hurtful here but you bought old age & some form of neglect

      If you can except that few folks ever do anything with there vehicles
      other than drive them

      From that perspective just go through it as I suggest

      I personally take the long route for the learning experience
      & diagnostic test experience,you need to get it running properly
      & not make love to it as I would

      Teddy B
      12/12/2014 jcronan
      I think you are right about this car being very neglected prior to me. I am pretty sure the ignition coils have never been replaced. The car is 15 years old with almost 60k miles on it. I am tempted to give the ignition coils a try. It just seems that it can be a few things and I don't have the equipment to do all of the test nor do I know someone who will give me a fair price. I know taking it to a mechanic will cost me a lot.
  • jcronan
    jcronan - 2001 Saturn LW300 - Engine - 12/11/2014
    P0301 & P0304 on code reader
    I have a 2001 Saturn LW300, which has recently given me two codes (P0301 & P304). When I purchased the car, driving it home the P0301 code came on. I changed the spark plugs and the code went away for a while. A symptom I have noticed is that the car will sometime ...
    0 answer
  • Classic Heaven
    Classic Heaven - 2005 Saturn Vue - Engine - 12/11/2014
    Code P2138 and an undocumented code. Need help testing circuits.
    Tested Plug to APP sensor, 5V on A and 1.5-2V on B, replaced Ignition control Module and coil pack, same readings. Vehicle is in reduced power mode and cel is on, cannot clear codes, they instantly pop up again with key on engine off. Not sure if the voltage to ...
    0 answer
  • Classic Heaven
    Classic Heaven - 2005 Saturn Vue - Engine - 12/9/2014
    Poor acceleration but no enginge skips or hesistation. Undocumented Code B2009
    2005 Saturn Vue 2.2L 2WD 137K Recently replaced plugs and coil pack due to a misfire on 3. Engine dosent miss, hessitate or skip, just very slow to accelerate. CEL on, scanned with professional Snapon scanner, came up with and undocumented code B2009, can't find ...
    • Teddy B
      12/9/2014 Teddy B
      B should be the Body Module
      You can Google your codes --TYPE: OBD & your code & add your yr make & model if necessary
      I assume you have no shop data base to look in or Helm Factory Service Manuals

      Moving away from the B code

      If your have been having misfires off & on for years, then the exhaust converter
      may be ruined & you have lost fuel control & I guess you still have cylinder misfires
      You have the scanner-look at cylinder misfire counts,fuel trim,O2 Switch & Bias if
      that data is there

      137K is 82,000 miles, that is long enough to ruin an ignition module, if you left the plugs in
      there that long.
      Did you back probe or scope the TPS Sensor?
      Doesn't take much to be noticeable on a 4 cylinder motor
      Converter may be blocked,not hot enough to light off,or your
      fuel pressure is very low
      You have a timing chain verse a belt- I believe
      There appears to be issue there thru 2005
  • Classic Heaven
    Classic Heaven - 2005 Saturn Vue - Engine - 12/9/2014
    Need help with poor acceleration and an undocumented CEL code B2009
    Recently replaced plugs and coil pack due to misfire on 3. No more codes but the undocumented one B2009. May start with ICM and actuator on throttle body as Ive read these may produce the problem. I have another vue with the 3.5L engine and also 5spd that will not ...
    0 answer
  • AutoMD Member
    AutoMD Member - 2005 Saturn L300 - Engine - 12/3/2014
    Car cuts out when comming to a stop or @ a stop light
    Recently replaced air intake hose, battery, & fuel filter. Car usually restarts in 5-10min
    • GT500Knights
      12/3/2014 GT500Knights
      Do you have the check engine light on? Have the code checked out--it may help greatly. Sometimes egr system failure can cause this symptom to occur....For example if the egr valve happens to get stuck open, it will throw off the air-fuel mixture. Also check for any vacuum leaks. On vehicles equipped with a mass air flow (MAF) sensor, vacuum leaks will throw off the calculated amount of air entering the engine, giving the pcm a false reading on the amount of air going into the engine, thereby leaning out the fuel mixture.
  • Laura Skyles
    Laura Skyles - 2007 Saturn Aura - Engine - 12/1/2014
    Loud whining noise when I start my car on cold mornings. Less whining noise while driving until car warms up
    After car warms up will hear whining noise when I accelerate after stopped at a sign or light.
    • Brad
      12/1/2014 Brad
      The loud whining noise could be from your power steering idle, turn the wheel back and forth and listen to see if the noise increases. Check your power steering fluid level. This is the most common cause of a loud whining noise. The reason it goes away when you drive is because the fluid warms up and thins out, putting less strain on the pump.
      12/1/2014 Laura Skyles
      Thanks, Brad. I had the pump replaced twice - no charge second time. First time because it was leaking and making noise. Second time for making noise. Still makes noise. Took it to another repair shop and they said it is normal. They did check the belts and hoses and all looks good.
  • Jessyca
    Jessyca - 2004 Saturn Ion - Engine - 11/29/2014
    Got new spark plugs, and all of the sudden timing chain breaks and caused thousand of dollars in engine damage.
    Took my car into a mechanic for a stalling problem(would stall and shut off if rpm reached below 1/2). The car was still drivable if you put it in neutral when stopped. They said it was due to needing new spark plugs and replaced them. They called back a few hours ...
    • CVO
      11/29/2014 CVO
      Sorry to hear that, but it sounds fishy.

      This vehicle has a timing chain and it's last of the life of an engine. If ( I said IF ) the timing chain breaks, the valves and the top cylinders won't collide due to the" interference engine application " doesn't apply to this.

      Call the Bureau Automotive repair ( BAR ), not sure if that BAR is in your State. See this link