Question about 1998 Saturn SL

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Car won't start unless hold the pedal to floor

I replaced the fuel pump, O2 sensor and plugs in a 1998 saturn and it starts right up with the fuel rail off but when its on I have to hold the pedal to the floor to start

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6 Suggested Answers

motor1258
  • 6674 Answers

SOURCE: Cam Shaft Position Sensor 1998 Saturn SL

Have a look at this link, scroll to your engine & click on picture to expand for better view.

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528017e904

Posted on Jan 23, 2009

juggernautxt
  • 145 Answers

SOURCE: Code: P0133 - O2 Sensor Circuit Slow Response Bank 1 Sensor 1

is this a 4 or 6 cylinder?
if a 4 cylinder it will only have 2 o2 sensors
V6 will have 4 o2 senors which the sensor will be the right side of the engine first sensor.
1st sensor on exhaust, I recommend if you change one change all, as this will make the computer when it rechecks the system you have all clean/fast responding sensors.

if you have a slow response it means the sensor is dirty and not reading well, which is usually caused by minor misfires that the engine computer dismisses, so a tune up would be recommended too.

Posted on May 06, 2009

  • 12 Answers

SOURCE: Saturn SL2 Brake Problems

sounds like your breaks need to be bled.
if it still is kind of spoungy then the routers are bad.

Posted on May 29, 2009

abauto
  • 353 Answers

SOURCE: 1998 Saturn SL2 engine light

Possible Causes
The following are malfunctions that could cause a rich condition:
^ Fuel pressure too high. Perform fuel pressure test.
^ Leaking fuel injector(s). - Perform pressure leak down test.
^ Vacuum leak around the MAP sensor grommet.
^ Oxygen sensor contamination.
^ Restricted exhaust or air intake.
^ Fuel Vapor Canister saturated with fuel.

IMPORTANT:
If the front oxygen reading voltage is above 600 mV and the rear HO2S is above 600 mV all the time, the O2 sensors are probably not
at fault.

Posted on Sep 22, 2009

  • 543 Answers

SOURCE: how to replace coolant heat sensor on 1998 saturn

the coolant temp sensor is located on the right side of the cyl head its small under by the upper rad hose 13mm socket removes it after u take the small connector of,make sure the car is cold coolant will come out when u remove it,,,,check the connector too for corrosion,by only saturn sensor the cheap autozone and aftermarket ones dont read right and give you the same problem as the old bad one

Posted on Oct 04, 2009

  • 1915 Answers

SOURCE: I have a 1999 Saturn 4 cyl. The engine idles

leaking o-rings at the fuel injectors would explain the hard starting when warm-when you hold the petal to the floor, it shuts off the injectors, which will make it possible to start it after the injectors leak down on shutdown. O-rings are easy to replace, just disconnect the battery and pull the injectors straight up to remove, get the old rings out and install the new ones, light lubricate the base of the injectors and pop them back in.

that might explain the high idle too, although usually the idle is not consistent when the injectors are leaking at idle-idle is rough. I would make sure the engine coolant temperature sensor is new (they are very important on saturn, the original one is plastic and they are known to crack easily-the replacement should be brass)-also, check the Idle air controller, best to remove the throttle body (4 bolts) and remove the IAC and clean it thoroughly, being careful not to get the top half wet-sensitive electronics. Clean the post that the IAC goes into, and clean the throttle body (both sides) while you have it out.

Posted on Feb 22, 2011

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2 Answers

Why do i have to hold the petal to floor to get truck to start?


Could be a dirty egr valve exhaust gas recerlater. I had a problem where my car wouldn't start or stay running unless I had gas pedal mashed to floor and it was that problem

Mar 31, 2015 | Cars & Trucks

1 Answer

RUNS ONLY AFTER IT WARMS UP FOR 10 MINS


I had this problem with my 2002 Chrysler Town and country. and even thou the "CHECK ENGINE" light was never on, it turned out to be a bad oxygen sensor. I replaced fuel pump and fuel filter cause it acted like it was starving for fuel, but that was not the problem. Typically if an O2 sensor is bad, a code will come up and the "CHECK ENGINE" light will be on, but not in my case. I replaced both O2 sensors (upper and lower) and it solved the problem and has been fine since. By the way, I got both O2 sensors from a junk yard where you take parts off yourself. I marked them right after removing them so they would go into my van in same places. Much cheaper, used, and they are factory, OEM parts compared to the junk universal type O2 sensors, they sell at part stores. Plus the fact that u have to splce your wire harness plugs onto the universal type they sell. terrible that it didn't throw a code, but I heard that this happens at times.

Mar 09, 2014 | 1995 Chrysler Cirrus

1 Answer

I have a Saturn SL 1998 Man.Trans. When the car is cold, I walk out to start it and the car cranks right up, I notice the temperature gauge goes straight to half way point and the coolant fan immediately...


There is a sensor its the ects sensor. Its in between the EGR valve and the upper radiator hose on your car. I just changed mine two days ago. And it fixed my problem. My car was doing the same exact thing yours is. The temp. gauge in your car should be fixed after you put this sensor in. And it should start up. It's a little two wire sensor that you need. It has a yellow wire and i think a brown wire on the plug end of it. Good luck and let me know if this helps. Thanks James Booth.

May 16, 2011 | 1998 Saturn SL

1 Answer

1998 GMC Savana 3500 5.7L. Truck starts ok when cold. After running, very difficult to start have to pump the pedal and hold to the floor. Fuel pressure jumps to 62psi when pump runs, drops to 58 and holds...


HOW MANY MILES ALOT IT REALLY SOUNDS LIKE YOUR O2 SENSOR OK LOCATED ON THE EXAUST PIPE CLOSE TO ENGINE UNDER THE HOOD THEY CONTROL YOUR FUEL MIXTUER FOR HOT AND COLD LIKE A CHOKE . IF ITS BAD THE ITS FLOODING IT OUT WHEN HOT AND YOU GET ROTTEN GAS MILAGE BECAUSE YOUR FUEL PRESSURES ARE FINE REGULATORS EITHER WORK OR THEY DON'T AND IT THEY DON'T YOUR TRUCK WON'T RUN O2 SENSORS GOING BAD DON'T ALWAYS GIVE A CODE OR A DASH LIGHT BECAUSE OF THE BAD GAS MILAGE AND BLACK SMOKE WHEN IT IS WARM ITS PRETTY OBVIOUS WHAT IT IS OK GOOD LUCK POHLCAT

May 03, 2011 | 1998 GMC Savana

1 Answer

When I start the 98 Saturn in the morning it runs good and drives just fine. Once I get to a destination and need to restart the car it will act as though it is flooded and will not start unless I hold the...


Have you tried replacing the O2 sensor and having your fuel injectors cleaned and checked? It sounds like it could be a fuel problem / emissionsproblem.

Nov 05, 2010 | 1998 Saturn SL

1 Answer

I have a 2000 saturn sl2, when i go out to start it i usually have to crank it over several times to get it to start, or i can hold the pedal to the floor and it will start, could the fuel pump be loosing...


sounds like the fuel regulator might be bad. it can cause too much fuel at start up. thats why it will start at wide open throttle. more air for the fuel mixture

Jun 14, 2010 | 2000 Saturn SL

1 Answer

99 saturn will carnk but won't start


try cranking engine while holding gas pedal to the floor, this turns off the fuel injectors to clear excess fuel from cyls. eng my just be flooded. may need to crank for a long time. if engine starts do not let off gas until you are sure eng will run on its own.

Mar 31, 2009 | 1999 Saturn SL

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