Question about 1984 Chevrolet Corvette

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1984 Corvette- hesitates when cold-stalls and won't start till it sits a while- if you get on it in a corner it will fall on it's face but not stall-surges at low speeds

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Hello! I need to establish a base for troubleshooting...I do not mean to insult your intelligence...Is the vehicle in a high state of tune? Fresh plugs, Good wires, Fresh PCV, and most important...Fresh fuel filter?

Has the vehicle been running fine; And this problem just developed?

Send a comment and I'll get to work on your car's problem...


Posted on Jul 06, 2010

  • 4 more comments 
  • allan_hel380 Jul 06, 2010

    Car is well tuned- new plug wires - cap - air filter - plugs- it hesitates when you excellerate and runs erraticly at low speed--car has been sitting for 3 months and now has this problem

  • allan_hel380 Jul 06, 2010

    car starts good--hesitates on excelleration--idle and low speed irratical

  • allan_hel380 Jul 06, 2010

    I havent hered any solutions yet--the sight is running me around in a circle

  • David Burbee
    David Burbee Jul 06, 2010

    Hello! You did not mention the fuel filter; Is it fresh? let's check the Throttle Positioning sensor (TPS)...It is bolted to the throttle body...Has a three wire connector...Colors are...Dark blue...Gray and Black...Take two safety pins and push them into the rear of the connector with (connector in place) on the Dark Blue and Gray wires...Set a voltmeter on the 2 volt scale...Hook the + probe onto the Dark Blue...And the - probe on the Gray...Turn the key on...Must read less than 1 volt (.85)...Start the engine...Slowly increase the throttle...Voltage must increase smoothly to 4 volts at open throttle...If voltage jumps or acts erratically the TPS is defective...

    Also inspect the air inlet flap for carbon build-up...Throttle inlet should move freely...

    Remove air inlet hose and inspect the Mass Air Flow (MAF) sensor...It's between air filter and throttle body...Look for dirt/debris on the screen...

    Last; Bury a can of Sea-Foam at local auto store ($9) and pour it into the gas tank...Excellent product for removing carbon build-up...

    Let me know what you find.......saailer

  • David Burbee
    David Burbee Jul 06, 2010

    Hello! That's BUY a can of sea foam...The problem that you are having is more then likely the TPS sensor...Once tested we can move on from there...I'm going to trouble shoot the problem...and offer a solution based upon tests...I needed background information to "get a picture" of your vehicle...Stick with me ...I will solve the problem.....Saailer

  • David Burbee
    David Burbee Jul 06, 2010

    Hello! Thank you for the rating...Have you found the problem? If not...When you do...Tell me what you found...Thanks again............Saailer



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