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Sunfire

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Question
Smoking/steam from back of engine.
When you install new parts, there could be some initial smoke or unusual vapors as factory coatings burn off, so the first thing you want to do is make sure that this is not a transient issue or false alarm....
Question
How can I figure out what the problem is to get it to running
Each fuel injector has an internal filter. If the fuel was really contaminated, it is possible the injectors were affected and filters are blocked. If the car starts when you introduce some starting fluid in the air intake, then you...
Question
can i put dexos oil in my sunfire?
You sure can, it needs to be 5w-30 which is the correct viscosity (flow rate of oil) for your vehicle. I recommend the use of this oil.
Question
Car will not accelerate when pulling out slow
The transmission of your Sunfire is definitely going into "limp mode," which is second gear only for this vehicle. Your Check Engine Light may also be illuminated; if so, get the codes scanned. They are relevant to this failure. There...
Question
Car turned on but wouldn't turn off
Two possibilities are the ignition switch/tumbler or the shifter interlock. You should hear the interlock move when you apply the brake pedal. If you hear no movement of the interlock when you press the brake pedal and the shifter button...
Question
Car won't turn over or start.
Since remote starters were not factory options, there is an aftermarket system in your vehicle. I would start there. If you can find out who the manufacturer of the system is, contact them to see if a wiring diagram is...
Question
Brakes hard to push pedal when cold not stoping very good after warm they work better
Hi there. From the description you have provided, your vehicle's hard brake pedal is a safety concern. It could be, the power brake booster check valve is faulty. It could be, the brake booster itself, is at fault. A hissing...
Question
My water pump is bad.
There are 2 different 2.2L engines available for this vehicle and one of the requires a special tool to remove the timing chain driven water pump. The moisture with the green tint is likely to be engine coolant. Consider hiring...
Question
My car revs uo and down when below when below 2000 rpm above that it works fine
Hi there. As you already know, replacing components without diagnoses can be expensive and time consuming without resolution. Performing a fuel pressure test may identify whether the fuel pressure regulator is causing the surging rpm (revolutions per minute) below 2,000rpm....
Question
How do I fix the issues related to code P0445 (Failed Emissions Test)?
Diagnostic Trouble Code P0455 has causes in addition to a faulty or loose gas cap. In your circumstance, the first thing you should do is reset the Check Engine Light which will erase the existing codes. Then see if the...
Question
Missing spring in a bleeder valve hydraulic clutch
Hello. You might check with a local auto parts store to see if the spring is included in a slave cylinder rebuild kit. That kit will have a new slave cylinder seal, boot, and often the return spring. You...
Question
Windshield wiper assembly question.
Hi there: If you got the replacement parts from an auto parts store, you might want to verify that the replacement parts were for the right model and year of Pontiac Sunfire (as this is a common problem with auto...
Question
Trunk won't close
Hi there. Usually when a trunk won't close, it's due to the trunk lock latch being damaged. This is something that can be replaced by a professional mechanic. However, before you decide to replace the trunk latch, you might want...
Question
My headlights, both high & low beam, are out - 2002 Pontiac Sunfire
Hi there. It seems that the high and low beam switch has a broken contact in it. It would be best to remove the switch and replace it with a new one. If, for some reason, the switch does not...
Question
I am looking to see what it making my check engine light go on. I need to verify that it is only the oxygen sensor and replace it.
Hi there: The best way to determine which O2 sensor is faulty is to have a professional mechanic complete a check engine light inspection. This will allow them to pull all error codes and pinpoint which sensor (or both in...
Question
in the base or value trim level, is onstar wired into the stereo?
Hello. If your vehicle is indeed equipped with OnStar then it is likely that it is wired directly into the stock radio unit, as that is how most OnStar systems are installed. It appears that replacing the original radio with...
Question
My car is making a weird high-pitched whirring sound - 2000 Pontiac Sunfire
Hi there. In most cases when you hear a screaming or squealing noise under the hood, it's related to a belt that is loose or is beginning to show signs of wear. Since you're having AC issues, the problem could...
Question
Heat and air issue
Hi there: Honestly there are multiple electrical components that operate your heater and AC system; ranging from relays to fuses and solenoids. Before you purchase any parts or begin to guess as to what might be wrong, you might want...
Question
Car started and then died
This may be related to many different possibilities, some of which may be fuel delivery problems such as low fuel pressure, faulty or dirty fuel injectors, a faulty or dirty idle air control valve (this relays information about air intake...
Question
Overheating issue and coolant draining after replacing head gasket
Hello. Was there any issue with the coolant before this point? If so, the blown head gasket may be a result of the engine overheating due to lack of coolant. You should start by pressure testing the cooling system. Make...

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