Top 20 2007 Pontiac Sunfire Questions & Answers

theft loc triggered worn ignition lock cylinder

The starter solenoid is wearing out. You can buy new contacts to repair it or you can buy another starter and get the solenoid with it. Either way, you will need to remove the starter from the vehicle.

A P0455 is a Evap system (large) leak. Sometimes this code is set by a missing or bad fuel filler cap.

bad bulbs, bad relay

Its likely that you have either a bad ignition switch or a bad neutral safety switch (if stickshift, clutch switch) Try starting in neutral...if it starts, change neutral switch (jump across clutch switch, check starting in neutral with your foot on the brake) Ignition switch is on top of steering column under dash.

if there is no leak, change the clutch master cylinder .

hi,

you can try your emergency flasher switch and make sure its completely off, sometimes that switch will interfere with turn signal operation, just an idea

good luck

J

Maybe the starter is not notify to the engine.

The connections between the starter and the engine is not good, is unstable...

Sound like the synchronizer is out for 3 and forth gears

check your negative ground cable first thing. make sure that it is clean on the battery and all the other places it attaches too, and there are several. disconnect the battery negative and clean it and then disconnect the positive too. when you reinstall them after at least 5 minutes make sure they are very tight. not to the point of breaking them but tight. check back see, turn the key to the On only then off and then ON ( not start) shut it off and then start it as normal. is your check engine light on?

Yup

check fuel pressure, if low change fuel filter. cycle key 3 times on and off ,before going to start

I suggest you try one of those instant download manuals. My brother( a mechanic) buys when he can't fix some technical issue with the manual at www.reliable-store.com . A lot of mechanics actually do this. Website is very good for this. Must try it !!

Sometimes it looks crazy too. But first look for good grounds Battery, cluster gauge you will have to retrieve the faulty code with a scanner that can read the code. Hope it help

Check inside the wheel arch to make sure nothing is coming in contact with the wheel as you are turning.

It's wired to run continuously and it doesn't run ??? Or it does run ??? If it's wired to run all the time an it doesn't , the temp sensor wouldn't have anything to do with it . Fan itself would be the problem . Videos on youtube showing how to test cooling fan .

Ignition module maybe or crankshaft position sensor . Videos on youtube showing how to diagnose GM ignition system for your vehicle . Check out this video , it runs but show's how to test ignition module coil driver , power an grounds . 2004 Saturn Ion 2 2 Misfire Case Study P0300 plus it shows where ignition module is .

Ignition control module ? did you replace that ? Plus the PCM - engine computer triggers the ignition control module for spark control . 2004 Saturn Ion 2 2 Misfire Case Study P0300 don't worry about the P0300 , diagnose ignition module before replacing the timing belt ,an finding out that's not the problem . Test don't guess .

Does your slave cylinder use the brake master cylinder to help pump fluid into the slave cylinder. You have a bad seal in the slave cylinder.