Question about 2005 Pontiac Sunfire
Check fluid level and add if needed if not low would drain fluid and replace fluid filter and gaskets in pan.
Posted on Mar 10, 2019
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Posted on Jan 02, 2017
SOURCE: 1995 sunfire wont shift gear
There were two different automatic transmissions in the Sunfire that year,the 3 speed trans designated the 3T40,and the 4 speed trans designated the 4T40.If your car has the 4 speed trans,there will be a circle around the "D" on your gear selector indicator.The 3 speed trans will not have a circle around the "D".The 3 speed trans works off of a cable called the TV or Throttle Valve cable.This cable should be checked where it engages the throttle body around the area where the throttle cable attaches to the throttle body,on the engine.If the cable becomes disconnected for whatever reason,the trans will not shift out of 1st gear in most cases.If the car has the 4 speed trans,this model trans is totally electronic,and the vehicle should have the codes pulled out.For every trouble code,there is a diagnostic route to follow to repair the malfunction.
Posted on Sep 10, 2008
SOURCE: My 1997 Pontiac Sunfire's clutch
Check Your Clutch Fluid It Just Like Checking Your Brake Fluid In The Engine Compartment. If Its Low You May Have Got Air In The Line Which Will Cause The Clutch To Feel Empty. Make Sure Its Full Then Get In And Push It 3 times and hold then get out and check it again seeing if its emptied the reservoir. Keep Adding until the clutch feels good again. make sure that after doing so there isn't any dripping off the bottom of the car which would indicate the line need to be repaired.
Next If The doesn't do it with the car off push the clutch very slowly and listen for any kind of suction sound near your feet. sometimes it leaks around the pedal. If you dont have any fluid on the floor board then all should be well.
Then fallow the line all the way to the transmission looking for fluid.
It is pretty easy to find as it doesn't dry.
Most vehicles use dot 3 brake fluid but your vehicle may differ check your clutch reservoir cap for specifications on fluid.
if it does take brake fluid do not spill it on your paint as it will take it down to the bare metal in no time.
I hope this helpful and look forward to hearing your results if you need more help.
Posted on Jan 27, 2009
My daughter has a 2003 with the same problem. She took it to a highly regarded transmission shop. They told her it is not the transmisison but an engine performance problem. She took it for an oil change to check the filters etc and the fuel filter is bad. I will follow up if that fixes the problem.
Posted on Apr 06, 2009
Timing Chain and Gears
REMOVAL & INSTALLATION
Fig. 1: The timing marks on the sprockets should be in alignment. If not, turn the crankshaft until the marks are aligned
Fig. 2: The timing chain tensioner is retained by a Torx head bolt (1) and a regular hex head bolt (2)
Fig. 3: Unfasten the camshaft sprocket bolt
Fig. 4: Remove the camshaft sprocket and the timing chain at the same time . . .
Fig. 5: . . . then remove the tensioner assembly
Fig. 6: Compress the tensioner spring and insert a cotter pin or nail in the hole provided to hold the tensioner in position
2.3L and 2.4L Engines .
Fig. 9: Remove the timing chain guides
Posted on Oct 08, 2010
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