305 TBI runs great then chokes out and won’t restart
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Joined: Nov 2015
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305 TBI runs great then chokes out and won’t restart
Hey fellas,
I have a 91 Camaro RS, basically stock, tbi. I’ve had it 10 years. I can start it after it sits all winter and it fires right up. Runs strong. Take it for a drive, and everything seems fine. No problem laying a little patch (around a corner, lol). It’s an automatic and it will chirp when is shifts into second sometimes. It runs great. Then, after 15 min or so, i will try to accelerate, whether from a stop or while rolling at speed, and the car starts to choke out. I can usually idle home if I can take side streets, but once this wanna-be-stalling starts, if I accelerate even enough to cross a main street, it acts like it is running out of gas. (It has gas) I love the car so much, but it’s not worth driving if I have to call a tow truck every time I take it out. Any ideas? Someone told me this sounded like a TBI issue, but who knows. Any suggestions would be appreciated.
Best,
-Ty
I have a 91 Camaro RS, basically stock, tbi. I’ve had it 10 years. I can start it after it sits all winter and it fires right up. Runs strong. Take it for a drive, and everything seems fine. No problem laying a little patch (around a corner, lol). It’s an automatic and it will chirp when is shifts into second sometimes. It runs great. Then, after 15 min or so, i will try to accelerate, whether from a stop or while rolling at speed, and the car starts to choke out. I can usually idle home if I can take side streets, but once this wanna-be-stalling starts, if I accelerate even enough to cross a main street, it acts like it is running out of gas. (It has gas) I love the car so much, but it’s not worth driving if I have to call a tow truck every time I take it out. Any ideas? Someone told me this sounded like a TBI issue, but who knows. Any suggestions would be appreciated.
Best,
-Ty
Joined: Sep 2005
Posts: 27,893
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Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 305 TBI runs great then chokes out and won’t restart
First, it doesn't "choke out". TBI doesn't have a choke to begin with. Put that term out of your vocabulary re. this car.
Second, you say it feels like it's running out of gas. I would tell you, pay attention to that feeling. Your gut probably isn't wrong. It probably IS running out of gas. Not gas in the tank, but rather, gas reaching the engine, which is where it matters. For example, when it won't restart, have your assistant spin the motor, and watch to see if fuel is being delivered. I'm betting, it won't be. Or at least, not enough. You can easily verify this by simply pouring acoupla ounces of fuel into the TB and trying to start it. If it starts right up, runs for a second or 2, then dies again, you have just successfully isolated your problem to fuel delivery.
TBI itself is pretty reliable, cheap to build, and easy to maintain. That's why GM used it in so many vehicles for so long. Have you changed the fuel filter? "Rebuilt" (took apart and soaked in lacquer thinner overnight and put in all new paper & rubber) the throttle body? Try those simple things first. If those don't fix it, then most likely, it needs a fuel pump. As the pump continues to die it's just gonna keep getting worse until finally it won't run at all.
Second, you say it feels like it's running out of gas. I would tell you, pay attention to that feeling. Your gut probably isn't wrong. It probably IS running out of gas. Not gas in the tank, but rather, gas reaching the engine, which is where it matters. For example, when it won't restart, have your assistant spin the motor, and watch to see if fuel is being delivered. I'm betting, it won't be. Or at least, not enough. You can easily verify this by simply pouring acoupla ounces of fuel into the TB and trying to start it. If it starts right up, runs for a second or 2, then dies again, you have just successfully isolated your problem to fuel delivery.
TBI itself is pretty reliable, cheap to build, and easy to maintain. That's why GM used it in so many vehicles for so long. Have you changed the fuel filter? "Rebuilt" (took apart and soaked in lacquer thinner overnight and put in all new paper & rubber) the throttle body? Try those simple things first. If those don't fix it, then most likely, it needs a fuel pump. As the pump continues to die it's just gonna keep getting worse until finally it won't run at all.
Thread Starter
Junior Member
Joined: Nov 2015
Posts: 2
Likes: 0
Re: 305 TBI runs great then chokes out and won’t restart
First, it doesn't "choke out". TBI doesn't have a choke to begin with. Put that term out of your vocabulary re. this car.
Second, you say it feels like it's running out of gas. I would tell you, pay attention to that feeling. Your gut probably isn't wrong. It probably IS running out of gas. Not gas in the tank, but rather, gas reaching the engine, which is where it matters. For example, when it won't restart, have your assistant spin the motor, and watch to see if fuel is being delivered. I'm betting, it won't be. Or at least, not enough. You can easily verify this by simply pouring acoupla ounces of fuel into the TB and trying to start it. If it starts right up, runs for a second or 2, then dies again, you have just successfully isolated your problem to fuel delivery.
TBI itself is pretty reliable, cheap to build, and easy to maintain. That's why GM used it in so many vehicles for so long. Have you changed the fuel filter? "Rebuilt" (took apart and soaked in lacquer thinner overnight and put in all new paper & rubber) the throttle body? Try those simple things first. If those don't fix it, then most likely, it needs a fuel pump. As the pump continues to die it's just gonna keep getting worse until finally it won't run at all.
Second, you say it feels like it's running out of gas. I would tell you, pay attention to that feeling. Your gut probably isn't wrong. It probably IS running out of gas. Not gas in the tank, but rather, gas reaching the engine, which is where it matters. For example, when it won't restart, have your assistant spin the motor, and watch to see if fuel is being delivered. I'm betting, it won't be. Or at least, not enough. You can easily verify this by simply pouring acoupla ounces of fuel into the TB and trying to start it. If it starts right up, runs for a second or 2, then dies again, you have just successfully isolated your problem to fuel delivery.
TBI itself is pretty reliable, cheap to build, and easy to maintain. That's why GM used it in so many vehicles for so long. Have you changed the fuel filter? "Rebuilt" (took apart and soaked in lacquer thinner overnight and put in all new paper & rubber) the throttle body? Try those simple things first. If those don't fix it, then most likely, it needs a fuel pump. As the pump continues to die it's just gonna keep getting worse until finally it won't run at all.
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