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Firebird

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Question
Have no heat, I've took the thermostat out still no heat. Flushed the radiator couple times. Doesn't seem to be flowing n radiator
The complete cooling system should be drained and fresh clean water put in with a good quality radiator flush put in. Run the engine for at least 30 minutes at 1000 rpms with the heater in the on position but...
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
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
97 Pontiac firebird formula brake light issues.
You will need to check the brake lights for power to the lights from turn signal switch. The third brake lights come direct from brake light switch where the lower brake lights have to go through the turn signal switch...
Question
Charging system failure.
This may indicate you have a bad alternator or voltage regulator causing the lights to dim and the voltage meter to fluctuate. As you may know, the alternator is responsible for charging the battery while the engine runs by generating...
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
Charging system battery keeps getting drained
Hello, You may have a failing voltage regulator that could be allowing the alternator to supply too much or too little amperage to the battery resulting in the battery never maintaining a consistent charge as it is designed to. The...
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
Rough idle on acceleration displaying symptoms of a misfire, but there is no misfire codes detected. On cold starts the car is completely normal.
Hi there. Since you have a code for the Exhaust Gas Recirculation (EGR), the EGR could act like a vacuum leak and cause a random misfire. Remove the EGR and clean it out and then put it back on. If...
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...
Question
The car bogs down and stalls; and has a rough idle until the i tap the upper plenum.
If the problems started after you replaced the PCM, and the first PCM did not have any known issues, you might want to begin your diagnostic by re-installing the original PCM. Seems like you did a lot of work on...
Question
My car shift is stuck in natural and I cant turn it on
Hello, If the car is stuck in neutral, you may have a broken shift linkage or potentially a malfunctioning transmission control module that may be preventing it to be put back into park. This will also explain why it will...
Question
Car won't start unless I let go of the ignition switch
Hi There, I believe the reason it starts when you disengage the starter is due to the fact that system voltage is being dragged down by the starter, thus when you disengage the starter the system voltage rises again. The...
Question
Spring thaw starting issues 1988 Pontiac Trans Am
Hello - your symptoms suggest a problem with idle control mechanisms, most likely the idle air control valve, or a dirty or malfunctioning throttle body. Also possible are dirty/gummed up injectors as well. I recommend a stalling at idle inspection...

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