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Firebird

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Question
Car starts but won't when warm - 1990 Pontiac Firebird
First order of business is to check for any diagnostic codes. This will make diagnosis faster and less expensive. Even though this model is pre-OBD II, there are on-board diagnostics. Both ignition and starter components can be heat-affected, but fuel...
Question
My low oil light comes on but, when I start the car the second time, it goes out and the dipstick reads full
Hi. The most likely cause of this problem is the oil level sensor has an intermittent problem and is about to fail. There is electrical circuitry inside the oil level sensor that sends info to PCM. Sometimes this electrical circuitry...
Question
Flooded car
Hello. You likely have issues caused by the flood. Get your vehicle inspected by a qualified professional, or if you have insurance on your vehicle, consult with your insurance company and have an adjuster determine the extent of the flood...
Question
Having trouble starting my car after it sits for a long period of time
There could be an issue with the fuel lines having a blockage buildup from sitting, or the fuel filter could be plugged up from fuel sitting. Try flushing out the fuel system with new fuel. You can also turn the...
Question
I'm having a problem with arcing from the plug wires.
The problem you are having is not due to the ignition system but is a result from an improper amount of fuel getting into the cylinders. If your engine is running lean, then it may cause the engine to not...
Question
When my car is at idle in park or neutral the Intake Air Control Valve fluctuates, causing the RPM's to do the same.
Hi there. It sounds as though the idle air control valve (IAC) may be sticking. It is not uncommon for carbon to build up in the valve, the computer will try to overcompensate to correct the slow reaction inside the...
Question
1992 Pontiac Firebird runs great but has trouble starting 1 in 3 times (it just clicks) .
Hey there. YourMechanic is most likely correct. The gears on your starter have to mesh and catch the gears on the engine in order to turn it over. If the teeth on the gear have been worn down, it's likely...
Question
Car cranks but won't start - 2001 Pontiac Firebird
Simply put, the engine only requires three things to start: fuel, air, and gas. The car is likely not receiving one of these in the right amount or at the right time. You can do some simple tests to help...
Question
Infornt of radiator brace there is a metal tag that has this 00_941 what is it
This tag is likely a part number or a replacement number tag for a particular part on the front of your vehicle. If nothing is damaged, I would disregard the tag. If your curiousity gets the best of you, I...
Question
EGR GAS RECIRCULATION SYSTEM VALVE 2
The color (black) is just a consequence of "carbon particles" that are normally present in the exhaust flow through the valve. We would need the exact Diagnostic Trouble Code ("DTC" as displayed on the Code Scanner) in order to advise...
Question
Car shakes when I press accelerator
This may be a sign of a failing throttle position sensor. The throttle position sensor (TPS) is a sensor used to monitor the throttle position of the throttle plate inside the throttle body in relation to your foot position on...
Question
My Check Engine Light was on, so I tried the paperclip trick to get a code and the light went out. Tested the bulb and it works
Since I cannot display an image on here, I will describe it best as possible. When looking at the diagnostic connector, is is basically a rectangle with flared tabs on one side. Consider that side of the bottom when viewing...
Question
Air conditioner & heater problem
The problem you are describing is possibly caused by mis-operation of the "flapper doors" that control and direct air flow throughout the various HVAC outlets. These doors are operated by cable or by servos. It is also possible that there...
Question
Car will not stay on after starting it sometimes
Hello, I'm curious if there are any problem codes set (they may or may not cause the Check Engine light to illuminate). If so, these will be helpful. Most auto parts stores will read these for you for free. I...
Question
Water pump / still over heating
This can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning...
Question
No one seems to know what to do or want to make the effort to find a solution.
Well, you're likely very far from a circumstance where you need to give up and get another car. Old cars do require more maintenance and repairs than new cars so some of the issues you are describing are just part...
Question
Transmission filter
I'm guessing what you mean is you found the filter lying in the bottom of the transmission pan. There is a bolt that is supposed to hold the filter in place. If the filter came loose, it's because that bolt...
Question
No spark replaced opti, coil, ice, pcm, bypassed vats still no spark
Hi there: This might seem to be over simplification, but you might want to double check all ground wire connections to the distributor first. Quite often a simple step like this is often one that's overlooked. If you're still struggling...
Question
engine cranks in any gear
The function of the neutral-safety switch is to make sure the vehicle can only be started in Park or Neutral. This is similar in function to having to depress the clutch pedal to start a manual transmission-equiped vehicle. It prevents...
Question
spedometer is not working
Hi there. Chances are, the inoperative speedometer in your vehicle is a broken speedometer cable. Typically, screeching noise is heard inside the vehicle prior to the speedometer cable failure. It could also be, the speedometer driven gear or speedometer head...

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