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Just changed intake manifold..


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I just changed the intake manifold (from Torker II to an air gap). Now, when it's idling, if I quickly blip the throttle, it surged then revs up. It has a lumpy cam and I'm having a difficult time figuring if the is a vacuum leak or a tuning issue.. And ideas?

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.

disconnect and plug your distributor vacuum advance and check it and leave it plugged.

 

plug the pcv and see if that helps . . make sure the pcv hose is not loose on the carb.

 

make sure the throttle isn't sticking.

 

check for air leaks with flammable brake cleaner and the long nozzle by spraying gently . . check the intake at the heads also.

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One symptom of a manifold vacuum leak (or any other major vacuum leak) is engine wanting to stall when (foot on brake) shifting into reverse or drive at idle (+/- 700 rpm).

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cazsper,

 

Do you have a Vaccum Tester in your tool box? A Mustang owners best friend!

 

INNOVA 3620 Vacuum/Carburetor Fuel Pressure Tester

 

Helps to identify and diagnose system vacuum leaks and problems in the engine, and the various vacuum-operated motors and accessories

 

 

http://www.amazon.com/gp/product/B000EW0KPY/ref=s9_top_hd_bw_g263_i3?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=merchandised-search-2&pf_rd_r=114KK4EFCAFDFXKSV2KD&pf_rd_t=101&pf_rd_p=2188933862&pf_rd_i=15729801

 

 

mustang7173

Thanks,

mustang7173 🇺🇸

"Courage is being scared to death but saddling up anyway" -- John Wayne

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I just changed the intake manifold (from Torker II to an air gap). Now, when it's idling, if I quickly blip the throttle, it surged then revs up. It has a lumpy cam and I'm having a difficult time figuring if the is a vacuum leak or a tuning issue.. And ideas?

 

Is the accelerator pump lever properly adjusted? What is the accelerator pump discharge nozzle size? Chuck

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make sure to look for leaks around the intake sometimes they don;t sit right you could have a vaccum leak there.

DRIVE IT LIKE YOU STOLE IT*****KEEP YOUR FOOT ON THE PEDAL

 

Ron

 

1972 mustang convertible

2005 mustang convertible

1999 mustang convertible white (sold)

1994 mustang convertible white (sold)

2008 ford edge copper

2006 cadillac cts radaint bronze

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