20 Most Recent 2001 Pontiac Sunfire - Page 4 Questions & Answers

How to Install Turn Signal Flasher on 2001 Pontiac Sunfire

You would need to lower your transmission to change these.

Focusing on switches: Start with the door switches. Pull the fuse for the dome lights. Reset the alarm. Does it sound off? The alarm feeds off the dome light fuse. Driver door is first: Often they wear out first and give us grief like this. Unscrew and disconnect the switch first. Replace the fuse. Carefully close the door so you don't loose the wire in the frame(attach a string to it so you can fish it back out if it falls in). Reset the alarm. Does it sound off or not? If it does, it is other than the switch or the passenger door switch (if a 2 door or 2 other passenger switches if a 4 door). Repeat process until the switch is found or all are eliminated. Switches are cheap, so replacing them will not break the bank. Disconnect the fuse again, unscrew the bad switch. Unplug it. Plug in the new. Screw it back in place. Reconnect the fuse and try it again. Repeat as needed until you have either found it or just limited your search area. Most often you will stumble upon it- chaffed wires, look plugs, bad switches). Yes, there is more, but I see this as the usual suspect. If you go back into the alarm, disconnect the alarm first, then observe the dome lights with the fuse in. It just may be a faulty control in the alarm, which is out of my territory. Let us know what you find, but start with the smallest things first. Good Luck!

There is no TCM in sunfire only truck have a TCM you might want to say PCM and engine soon light flashing cause of misfire engine ....retrieve code and you see P0300 or P0301 or P0302 or P0303 or P0304 .the last number is for the cylinder number misfire and the P0300 for multiple misfire hope it help

Use the other side as a guide. Take the drum off the other side.

Ecm must be made for the VIN number car it is used on

Can be a faulty door lock actuator inside driver's door.

Sounds like the blinker relay. Is the emergency flasher switch on the dash above the radio ? If it is the blinkers relay is the same as the emergency relay. If the blinkers stop working pound on the emergency lights switch and if they start working then replace the emergency lights relay switch cause the blinkers is on the same relay as the emergency lights. My 2001 Grand Am does the same and I just hit the emergency lights switch and they start working again.

You need to raise the vehicle and start it. Remove the plug near where the passenger side driveshaft comes out. The head of the plug is 7/16. Trans fluid will stream out of the hole when the engine is running when the transmission is full, If fluid doesn't run out, fill the trans until fluid runs out. The fill cap is red and it is on top under and around the air cleaner box. If you need more help let me know.

Knock sensor, loose valve rocker, needs to be adjusted by a professional mechanic

Standard plug gap for the 2.2 engine is .040 inch.

Check ignition system or scan with diagnostic scan tool, due to complexity of newer model cars and the use of computer systems, there are a variety of sensors and relays that can go defective.

Make sure that your timing belt is intact.

this is for the MAP sensor , it can also be a wiring fault and not the actual sensor so i've copied and pasted to save time a guide Symptoms Possible sumptoms of OBD code P0108 MIL (Malfunction Indicator Lamp) will likely be on Engine may run poorly Engine may not run at all Fuel mileage may decrease Presence of black smoke at exhaust Causes Possible causes of OBD code P0108 Bad MAP sensor Leak in vacuum supply line to MAP sensor Engine vacuum leak Short on signal wire to PCM Short on reference voltage wire from PCM Open in ground circuit to MAP Worn engine causing low vacuum Possible Solutions A good way to diagnose if the MAP sensor is to blame would be to compare the KOEO (key on engine off) MAP sensor reading on a scan tool with the Barometric pressure reading. They should be the same because they both measure atmospheric pressure. If the MAP reading is greater than 0.5 volt off of the BARO reading, then replacing the MAP sensor would likely fix the problem. Otherwise, start the engine and observe the MAP reading at idle. It should normally be about 1.5 volts (varies according to altitude). a. If it is, the problem is likely intermittent. Check all the vacuum hoses for damage and replace as necessary. You can also try wiggle testing the harness and connector to reproduce the problem. b. If the scan tool MAP reading is more than 4.5 volts, check the actual engine vacuum reading with the engine running. If it is less than 15 or 16 in. Hg, then the PCM is probably not seeing enough vacuum (due to a worn engine, perhaps) for a given operating condition (which causes a higher than normal voltage signal to the PCM) and setting the code. Repair the engine vacuum problem and retest. c. But, if the actual engine vacuum reading is 16 in. Hg or more, then unplug the MAP sensor. The scan tool MAP reading should indicate that there is no voltage present. Check that the ground from the PCM is intact and also that the MAP sensor connector and terminals are tight. If the connection is good, then replace the map sensor. d. However if, with KOEO, & the MAP sensor unplugged, the scan tool shows a voltage reading, then there may be a short in the harness to the MAP sensor. Turn the ignition off. At the PCM unplug connector and remove the MAP signal wire from the connector. Re-attach the PCM connector and see if with KOEO, the scan tool MAP reading shows voltage. If it still does, replace the PCM. If not, check for voltage on the signal wire you just removed from the PCM. If there is voltage on the signal wire, find the short in the harness and repair. hope this helps

Shifter cable/ linkage needs to be adjusted.

check fuses. connect any scan tool see if there ARE DTCs (errors) set for a/t then get the cable adjusted. to spec. if there are DTC, see how to diagnose each in the FSM. book. each error is covered. what works and does not post all./ P R N D L. all fails some work ?

Try cleaning the throttle body and IAC idle air control valve.

If your key has a plus sign symbol ( + ) on both sides of it, then it must have an electronic chip and it needs to be programmed. The key looks just like any other car key, except for the plus symbol that is on it.

The filter is located behind the gas tank. One end has a quick release coupler and the other end screws on. Adjustable wrench will get one end. More than one type of quick coupler is used. After you buy the filter, ask the auto parts store how it disconnects.