engine noises and rpm revving at slow downs

[Cortinas316]

My experts! I am running into an issue where about 10 miles into any drive I am hearing a light buzzing/intake sound sacking in sound coming from the passenger side engine area. I hear this only ad I step on the gas to accelerate I let off and it instantly stops.i push the gas and I hear it again. I do not hear no knocking or grinding . Of any kind. Oil is good and air intake is clean...so after my trip to work or home when I slow down make a turn onto my road..lightly press the gas and it goes to about 2000 rpms with power and all of a sudden the rpms go up 5 about 4000rpms...like if I was in neutral. I let off and it kicks in again....but on my way to work this morning...it didn't kick in. Taking it to the shop after work but has anyone heard or seen this before....trying to anticipate my pocket book damage.

 

[Cortinas316]

My experts! I am running into an issue where about 10 miles into any drive I am hearing a light buzzing/intake sound sacking in sound coming from the passenger side engine area. I hear this only ad I step on the gas to accelerate I let off and it instantly stops.i push the gas and I hear it again. I do not hear no knocking or grinding . Of any kind. Oil is good and air intake is clean...so after my trip to work or home when I slow down make a turn onto my road..lightly press the gas and it goes to about 2000 rpms with power and all of a sudden the rpms go up 5 about 4000rpms...like if I was in neutral. I let off and it kicks in again....but on my way to work this morning...it didn't kick in. Taking it to the shop after work but has anyone heard or seen this before....trying to anticipate my pocket book damage.

 

[USMC_TOP]

Sounds like trans. You full of tranny fluid?

 

[Cortinas316]

Sounds like trans. You full of tranny fluid?

*face palm* I haven't. I hope that's what it is.
Thanks!

 

[4speedfunk]

Maybe a vacuum leak. Intake bolts have been known to simply fall out...very common.


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[alrock]

Don't know what's going on, or even if the two issues are related. Many possibilities on the sound from a heat shield, to an exhaust leak, to a vacuum leak. Maybe a bad CV in the front propshaft?

 

[USMC_TOP]

Sounds like he's slipping out of gear when the tranny heats up

 

[alrock]

Well, it does sorta mimic when the transmission fluid pump went out on me.

 

[Cortinas316]

Sounds like he's slipping out of gear when the tranny heats up

looks like USMC_TOP had it right! New tranny needed. As soon as the trans heated uo it was slipping. So looking at around 1200 for the part and god knows how much for labor I'll be lucky if I'm outta this for 2grand.

 

[USMC_TOP]

Ouch sorry for being right on that brother..............