when shifting rpm,s jump

[1995greenstang]

when i shift between gears the rpm,s go up it doesnt do it when its cold
anyone know what this could possibly be? when im driving when i shift from any gear lets say i am at 2500 rpm it will rev up to 3000 by its self at any rpm at any speed rpm,s just by atleast 500 rpm thanks for any input
im thinking this may be just with 94,s 95,s never had this issue with the fox bodies

 

[SVTtripleblack]

when i shift between gears the rpm,s go up it doesnt do it when its cold
anyone know what this could possibly be? when im driving when i shift from any gear lets say i am at 2500 rpm it will rev up to 3000 by its self at any rpm at any speed rpm,s just by atleast 500 rpm thanks for any input
im thinking this may be just with 94,s 95,s never had this issue with the fox bodies

Did you do anything recently to the car?(Any mods or repairs) When you say it doesn't do it when it's cold, do you mean when the engine is cold or when it's cold outside? From what it sounds like, it's only doing it when the car is in closed loop.

 

[aerodorcho]

I think this is common because I just posted a similar thread about my 94 GT doing the exact same thing, it jumps up at least 500 rpm between shifts. I'm fairly stock, so i think its just the way they are.

 

[BlackVert]

i have seen this when my IAC valve was starting to stick open

 

[The O.G.]

i have the same probem , most of the time it is always seems like throttle body issues,...to far open,tps,iac,

 

[FlyBy763]

or a vacuum leak...

 

[1995greenstang]

when i first start the car up it doesnt do it rigfht when it warms up it starts doing it
i messed with the iac cleaned it out but still same result cleaned the maf and the throttle body no big deal just irritating, one more thing its smells like its running rich but no codes for the 02,s

 

[1995greenstang]

Did you do anything recently to the car?(Any mods or repairs) When you say it doesn't do it when it's cold, do you mean when the engine is cold or when it's cold outside? From what it sounds like, it's only doing it when the car is in closed loop.

has mac cold air kit and mac unequal length headers withmac h pipe