so its about 32*f today pretty cold for SC and i went out to drive my car and it was fine pretty much all day untill i got on a main road speed limit is 50 so im doing 55-60 and then my car seems as if it is losing compression...it is at about 4-5k rpms and then just starts slowly droping no matter how much juice i give it falls so i go to 4th then 3rd and it wont go at all... i pull of rev it up its fine get back on the road and once i hit 40mph it dosnt it again... that last owner said it did this to her about once a week but it would then cut off she would let it sit then go again adn it would be fine.. so this time i turned it off got back on teh road and still does it........whats the beef ??

 

ohh the enige was fully warmed up to i had been in stop go driving on 25 30 resident streets for like an hour and half before this happened .......the feeling also is of you pulling the clutch out to fast (jerking motion)

 

Did u go down the common problem check list??? Fuel filter, spark plugs, gas going to the carb ????

 

MAYBE fuel filter. I have a vid of one totally clogged if you want to see it. Add me on AOL and I can send it to you.

 

well im planning on once it warms up to go outside and do oil change,, get new wires and plugs.. and oil filter gusse fuel filter

 

I live in GA & my RX7s only cut up when it was raining. Cold only mattered if the battery was weak. May be you are tuned too lean??? Running lean can fry a rotary. I'd have it checked.

 

hey the exact same thing happend to me, if u feather the gas and not try to get on it does it run okay? if so i will guarentee its ur fuel filter. trust me bro its only 3 bucks and will fix everything

 

aight kool yea i noticed even though going 50 i went to 3rd if i feathered it i could drive but it still would slow untill i got to under 40 then i ran decent but not good....and when on the interstate my car was topping out at 62mph with the rpms shacky almost as if thats all it had but im gussing filter

 

rusty im telling u, people are going to try to race u now cause ur broken. so do it asap. thats what happend to me..

 

hahaha.......tru that

 

I'm willing to bet it's the fuel filter if it bucks like you described. My brother's Suzuki Samurai (strictly off-roading beast) did that and we couldn't figure it out, thinking it was an electrical problem. Took off the fuel filter and ran without it for a couple minutes (back to camp), ran perfectly.

 

either that or the fuel pump is actually dying. Hopefully not.

 

Check operation of secondaries

 

this didnt happen the past 2 days but today it was really bad

 

how can you check them since they're vacuum operated? I still have my spring attached...I was searching this earlier today.....
sorry, not trying to thread jack....

 

convert them to mech. Then you can check them

 

Mech is the way to go. Unless of course your CARB IS BOTCHED AHHHHHHHHHHHHHHHH...

ok I am better now

 

Vapor Lock. My 85 12A did that yesterday. Came from a warmer place (garage) to the cold air 19 degrees. Ran fine until I got on the interstate and got to 50+ MPH. Then it started bucking like it was not getting enough fuel. Drove it back home, let it sit for a while. Started it up and drove it to work, no problems.

 

my car its outside and this happened after i had been driving awhile but im geetting a new fuel filter today hopefully install it today too

 

happened to my car a while back, 'cept it was a honda, it was the.... *thinks*.... accelerator pump inside the carb that was pooched, i had to replace the carb and it ran like a dream, so chances are you need a new carb.... but then again, i'm no mechanic....

-Anthony