20 Most Recent 2003 Saturn ION - Page 5 Questions & Answers

Look to replace the TCM throttle control module

Make sure all the windows are rolled up because it could be wind noise.

The coolant light is a bad thing. You need to check the coolant to see if it is low. That would cause the light to come on. IF it is low you could over heat the engine and that would cause a major problem.

The vibration is a sparkplug that is misfiring. I would start by replacing the spark plugs. Also just in case add a can of dry gas to eliminate any possible water problems.

Sounds like a weak fuel pump but i could be wrong in this case as this vehicle is known as a astra or vectra and the computer is bolted to the engine ,this causes no end of problems as the heat with time affects the electrical component values ?? causing problems like this ,best advice i can offer is to call the dealer

YOU WILL HAVE TO DRIVE 100 MILES FOR COMPUTER IN CAR TO HAVE ENOUGH INFO FOR INSPECTION, I JUST PUT IN A NEW BATTERY AND WENT FOR INSPECTION, ONLY 20 MILES ON , WOULD NOT PASS, WENT BACK A WEEK LATER AND HAD TO PAY AGAIN!!! BUT PASSED

The ECM kicks up the engine rpm's a bit when the A/C is on. This is normal. In the winter, the A/C kicks on and off only if you have the dial set on defrost. this clears the inside windshield of condensation. Again this is normal.

It's on the the transmission .

yes it could be a fuse or a bulb, if a bulb is out they wont work, check your fuses cause i am sure thats it

sounds like the 5th gear is wering out

Time to get another transmission.

The tensioner will have a mounting bolt in the center. Put a wrench (box end) on the bolt to pivot the tensioner. Note - make sure you are moving the tensioner and not trying to move an idler pulley

See the arrow ?? Near the 'tail' of said arrow is a 'square' hole in the tensioner....Add tool,rotatein the direction of arrow & remove belt.....New belt installs in reverse order. If you need further help, reach me via phone at https://www.6ya.com/expert/ralph_2f0886b7d6af32ce

Sounds like your electric fan is not coming on. Do you have heat? if not it might be thermostat, if yes, listen for or look and see if your electric fan is coming on

Chevy dealership is your friend. Saturn Ions replaced with chevy cobalt.

you may have a broken wire to plug pin, replace light socket assembly, parts store should have replacement units all it takes is cutting out the old socket and bud splicing or soldering the new one in

Don't take the alternator of and have it tested. You need to test the alternator on the vehicle. This will let you know if the charging system is working as a whole. The alternator must have a signal to charge the battery. In the trunk with the battery wires, there is a smaller write cunning post of the main wiring. Make sure it isn't damaged. Make sure your negative cable in the trunk is properly connected to the body. If these are good, you need to take this vehicle to a reputable mechanic for further diagnosis.

I think you may have a miss fire try replacing the sparkplug and wires if that fails coil packs I would go cheapest first