[chevyrestore]

after driving a little while when I start off from a dead stop it seems like it hesitates before moving. The best way I can describe it is I press the gas...it thinks about going, then 1/2 a second later it goes, sorry its really hard to explain...any ideas?

[SSedan64]

Make sure the TV cable is adjusted correctly. Fluid level correct?
Sounds like a low pressure problem. I wouldn't drive it until you find the cause/problem. Can quickly smoke the Clutches.

A Pressure test is also a good idea.
http://www.jakesperformance.com/TV_C...etup_Info.html

[chevyrestore]

fluid level is correct, if it is a cable adjustment issue would that hesitation point to a cable too loose or a cable too tight?

[SSedan64]

Originally Posted by chevyrestore

fluid level is correct, if it is a cable adjustment issue would that hesitation point to a cable too loose or a cable too tight?

Cable loose= low pressure & soft shifts.
Cable tight= higher Pr. & firmer shifts.

Seal on Filter neck in the pan leaking or Filter not installed correctly can cause low Pressure.
Pump wear will also cause low Pr.

[tnsmith10]

Originally Posted by chevyrestore

after driving a little while when I start off from a dead stop it seems like it hesitates before moving. The best way I can describe it is I press the gas...it thinks about going, then 1/2 a second later it goes, sorry its really hard to explain...any ideas?

that more than likely is carb related, not trans. does the rpm come up and then the trans decides to go? or does the engine just go flat for a second then accelerate?

[chevyrestore]

seems to go flat for a split second and then move. It will not do that in park, only when trying to move the truck.

[chevyrestore]

any suggestions? I did change the linkage on the carb to the top hole and it seemed to help a super super tiny bit FYI. Could timing cause this?

[eloc431962]

Originally Posted by chevyrestore

seems to go flat for a split second and then move. It will not do that in park, only when trying to move the truck.

Still can be the carb IMHO when it's in park it's not under a load and when you drop it in gear it is. JMO



Cole

[chevyrestore]

so what adjustments should be done to the carb?

[eloc431962]

Originally Posted by chevyrestore

so what adjustments should be done to the carb?

I don't know what carb you have but here is a link that can help with a holley carb. you need to check the float levels and the air fuel mix and also check for any vacuum leaks. And if you have a good light it wouldn't hurt to re-check and see where the timing is at. JMO .http://www.holley.com/TechService/Library.asp .




Cole

[chevyrestore]

I just had the air/fuel mixture set a week before I replaced the trans/converter and they set the timing to 0 degrees they said. Its an edelbrock performer carb and there are no vacuum leaks I can find.

[chevyrestore]

I figured out today that after I adjusted the float level on that bracket it got a little better but only first thing in the morning. It seems when the engine heats up the hesitation happens and also when that is happening if I put it in park and rev the engine it sputters a tiny bit the very second I push the pedal until it gets to around 1100rpm or higher. Any suggestions or should I take it back to the carb shop that adjusted it?

[cobalt327]

Originally Posted by chevyrestore

I just had the air/fuel mixture set a week before I replaced the trans/converter and they set the timing to 0 degrees they said. Its an edelbrock performer carb and there are no vacuum leaks I can find.

It needs more timing unless this is using the OEM computer that requires the timing to be set at 0 degrees w/the tan/bk stripe timing bypass wire disconnected.

If you have a normal non computer controlled ignition, set the timing to 10 degrees BTDC to start with. Be sure the total timing isn't too high else the distributor will need modifying.

[chevyrestore]

its non computer controlled and if I adjust the timing from 0 degrees to 10 degress BTDC will the carb air/fuel mixture need to be readjusted again or will that not be affected?

[cobalt327]

Originally Posted by chevyrestore

its non computer controlled and if I adjust the timing from 0 degrees to 10 degress BTDC will the carb air/fuel mixture need to be readjusted again or will that not be affected?

Advancing the timing won't require any internal changes to the carb, providing that the carb was set up correctly to begin with.

Any time the timing is changed, it is a good practice to go ahead and check/readjust the air/fuel mixture screws to give the best idle speed/highest idle vacuum.

Just increasing the timing from "0" to 10 degrees BTDC will increase the idle speed and vacuum, so I would expect that after setting the timing you will then need to lower the idle speed, using the curb idle speed screw. Then readjust the air/fuel mixture screws to give you the highest idle speed/highest vacuum reading, then adjust the curb idle speed again if needed, in order to keep the idle RPM where it should be.