SOURCE: 2000 Volvo s70 sedan won't run smoothly when holding it at a steady acceleration
Sounds like fuel starvation. Would suggest cleaning any filters in the fuel line or replacing.
Also check the stop idle valve. This should be inline in the air intake pipe to the intake manifold..
Remove it and clean with WD40.Make sure you note the orientation of the spring.
To reset the ECU disconnect the battery for 5 minute the reconnect. The ECU should reset to factory settings. Make sure you know radio and alarm codes!
Try petrol additive STP or Redex to clean inside the engine.
Thats as far as my knowledge goes, hope it helps.
SOURCE: My 2000 Ford Taurus at about 4000 rpm does not go
To do this in park or neutral is normal. To do it while driving is not.
There are so many things that could cause this but if you have no check engine light and it runs normally up until then I would suspect you have an exhaust restriction. This can be checked fairly easy on this vehicle, it has a DPFE sensor that mounts near the top back side of the motor.It will either be black or silver,will have a 3 wire connector to it and 2 hoses going down the back of the motor to the exhaust. You can disconnect one of these hoses and install a vacuum/pressure guage and measure exhaust back pressure. It should be 1 psi or less at idle and when you go to wide open throttle should not exceed 3 to 4 psi. If it does something in exhaust,most likely one of the catalytic convertors is stopped up.
SOURCE: engine will not accelerate smoothly and evenly, it chugs along.
Clean, inspect and, or, Replace your crank sensor or, crank sensor wiring A loose crank sensor bracket or, a start relay has caused this before
SOURCE: transmission only shifts in 4000 rpm range- see notes.
if it has a cable attached throtle body it needs slacking off big time, if its electriacl it needs a shift solenoid first. before you do anything check the fluid is it dirty and level ok, if all yes a new box.
SOURCE: When my 2000 Pontiac Gran Prix accelerates to
The fuel may be contaminated,use a bottle of lucas,and two bottles of heet in the fuel tank,this will take care of the moister in the tank,and clean the injectors,and fuel system.
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