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84 hesitating on take off

Posted: Tue May 10, 2011 12:27 pm
by 84restor
I'm having a problem with my 84 hesitating when I hit the gas iv done a full tune up and it still does it. It runs fine once u get it going but it hesitates again when u push the throttle to speed up. Trying to avoid a Carb rebuild can anyone help

Re: 84 hesitating on take off

Posted: Tue May 10, 2011 4:07 pm
by spiffyguido
Have you also verified that the plugs, wires, rotor and distributor are in good shape?

Re: 84 hesitating on take off

Posted: Mon May 16, 2011 7:15 am
by 84restor
IV done the plugs wires distributer cap roter primary and secondary fuel filters air filter and still it does the same thing. Could a faltering fuel pump cause this. I have noticed a fast clicking sound coming from the fuel tank when I first start the car.

Re: 84 hesitating on take off

Posted: Mon May 16, 2011 9:54 am
by spiffyguido
Yes, a fuel pump could cause this. The diaphragm in your fuel pump might be failing and it may not be able to supply enough fuel to the motor. This is hard to test unless you're able to put a pressure gauge on the supply line.

Re: 84 hesitating on take off

Posted: Mon May 16, 2011 10:24 am
by 84restor
I was thinking it could also be a week spark from the coil. As of late it has been missing at low speeds and the idle looping by 300 rpm

Re: 84 hesitating on take off

Posted: Mon May 16, 2011 1:50 pm
by spiffyguido
That's also possible. I know you said that you replaced the distributor components, but a faulty coil will certainly also impact the quality of your spark.

Re: 84 hesitating on take off

Posted: Mon May 16, 2011 2:40 pm
by 84restor
Is there anything else that I might b missing that could cause this

Re: 84 hesitating on take off

Posted: Tue May 17, 2011 10:15 am
by spiffyguido
Unless there is a problem with the carb itself, probably not. You've got fuel, you've got spark and you've got air. That's all you need. The only other thing that could be causing hesitation on a carbed engine is the carb itself, so be doubly sure all your vacuum lines look healthy and the carb is well adjusted.