It mostly does it when its colder but ill be drivin at normal trottle and around 3k rpms it feels like i let off the gas a little bit . then around 3500 rpm it pickes back up. iv replaced my fuel pump,puel presser regulater tps sensor ,map sensor and o2 sensors . any ideas what it could be? i know my intake is extremly dirty inside
power loss around 3k rpm
- Thread starter sho_me92
- Start date
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Mr95Gl
Mr Tire Iron
I'm having this same exact problem, although it doesn't do it all the time. Once you hit 3K, it stumbles for a sec and around 35-3800 you get thrown back into your seat. Could a bad IAC/IAB valve cause this problem?
93rev2sev
SHO Member
Sounds like an intake problem to me also. Theres Prolly a leak somewhere. After the aforementioned 3800RPM, the secondaries open and all is well again.
There might be a quick fix though. Since all is well after the secondaries open, there might be a leak in a vacuum line (most if not all vac lines would run off of the primaries since the secondaries arent open all the time). Does your Cruise control work? If it's a 92, the cruise works off of vacuum. The canister for it is tucked inside the drivers fender. It may be cracked from a rock tossed by the tire or the hose may be leaking. IIRC there is no hose clamp or anything holding it on.
There might be a quick fix though. Since all is well after the secondaries open, there might be a leak in a vacuum line (most if not all vac lines would run off of the primaries since the secondaries arent open all the time). Does your Cruise control work? If it's a 92, the cruise works off of vacuum. The canister for it is tucked inside the drivers fender. It may be cracked from a rock tossed by the tire or the hose may be leaking. IIRC there is no hose clamp or anything holding it on.
allshoallgo
New Member
what helped me was i have a k&n filter and my mass air sensor was coverd in the oil from the filter, after cleaning it that helped
94greennasho
New Member
sounds like to me a dead spot on ur tps. if u have acess to a multi meter hook up to the grond and the single and with the koeo slowy move the throttle. if u see the volts go from like 1.?? volts something low then drop to 0 volts its ur tps and it has a dead spot
1993MTXSHO
Its a Taurus...
do you have gutted cats? Sometimes if you gut your cats and put them back on, it can create a turblence in there at certain rpm's and cause that
