Mr. 1995 DeVille 4.9 runs fine at lower rpms but "lopes" or cuts out at higher (about 3,000) rpms. This is standing still and moving. Anything stand out in your experience. Changed fuel filter.
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this is your rev limiter stopping you from over reving engine causing internal damage. this is normal on all new vehicles. Don't know what year they started this but it goes back at least 16 yrs
WHICH CONTROL ARM UPPER OR LOWER,PUT JACK STAND UNDER LOWER ARM CLOSE TO BALL JOINT BRAKE LOOSE BALL JOINTS MOVE SPINDLE ASSEMBLY AWAY WIRE TIE UP, JACK UP VEHICLE IN MIDDLE OF FROM BEHIND RADIATOR ,LOOSEN ALL BOLTS HOLD AN REMOVE THAN REMOVE CONTROL ARM EITHER TOP OR LOWER,IF ITS 4 WHEEL DRIVE WIRE TIE REMOVE AXLE OR WIRE TIE UP
ECT stands for Electronically Controlled Transmission. When you push the button in, there should be a light on the dash that says "ECT POWER". This changes the normal shift times (based on engine vacuum, rpm, and throttle position) to a later point. This means simply that the engine rpms will go higher before shifting to a higher gear when you're accelerating. It helps build speed more quickly but uses more gas to do so.
im having the same problem w my 97 bird... lopey or rough idle. no luck yet changed or tested many sensors already... if you have any tips let me know and ill do the same, [email protected] Thanks
ECT stands for Electronically Controlled Transmission. When you push the button in, there should be a light on the dash that says "ECT POWER". This changes the normal shift times (based on engine vacuum, rpm, and throttle position) to a later point. This means simply that the engine rpms will go higher before shifting to a higher gear when you're accelerating. It helps build speed more quickly but uses more gas to do so. hope this helps please vote thanks
try running a higher viscosity oil.
Instead of 5w30 (W stands for winter or cold viscosity) try a 10W30 or maybe more like a 20W50 the higher number is when the oil heats up.
You may try and add a can of No-Smoke or STP oil additive since you recently changed oil.
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