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Why does the idle speed accelerate then go back down after a few seconds on 96 gmc sierra?
Wiki User
∙ 15y ago
I have the same truck model and had the same problem. It is the oxygen sensor either the upstream or the downstream get a check engine test its free and then you'll know whether its up or down either way they cost a pretty penny. let me know. This also causes the truck tonot burn the gas properly and the truck loses force.
Wiki User
∙ 15y ago
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What are jet boats?
there boats that have a engine on the back of them that causes the boat to have more speed when they accelerate
What is the proper obd2 drive cycle for a 1999 jaguar xjr?
NOTE: Certain vehicles have known OBDII Readiness issues. Please be sure to review TSB's for special circumstances and or exceptions to readiness monitor resetting procedures.Before Beginning the Drive CycleCheck the status of the Readiness Monitors, check for DTC's, correct faults, clear DTC's before beginning the Drive Cycle.Begin Drive CycleThe vehicle should be driven approximately 7.5 miles within a period of approx. 23 minutes (1372 seconds) from a cold start. However, due to manufacture variations, it is necessary to perform only as much of the Drive Cycle as is necessary to reset the required monitors to a "Ready" status. Operate the throttle smoothly to obtain best results. Do not turn the ignition off during the drive cycle.CAUTION: Obey all traffic laws and drive in a safe manner!NOTE: Extreme driving conditioning such as very high/low temperatures, rough roads and high altitudes may prevent some monitors from attaining a "Ready" status.Step 1 (Engine Cold) Start engine, idle 20 seconds. Accelerate gradually and drive at 20-25 mph for 1 minute, varying speed. Step 2 Accelerate gradually to 32 mph within 35 seconds. Decelerate to 0 mph in 10 seconds. Idle for 40 seconds. Step 3 Accelerate at part throttle to 25 mph in 10 seconds. Cruise at 17-25 mph for 15 seconds. Accelerate gradually to 57 mph in 45 seconds. Cruise at 50-56 mph for 1 minute. Decelerate gradually to 0 mph in 40 seconds. Idle for 15 seconds. Step 4 Accelerate at part throttle to 36 mph and maintain for 10 seconds. Decelerate to 0 mph in 15 seconds. Idle for 5 seconds. Step 5 Accelerate to 30 mph and back to 0 mph within 30 seconds. Idle for 20 seconds. Step 6 Accelerate to 36 mph in 20 seconds. Drive at 35 mph for 20 seconds. Decelerate to 0 mph in 15 seconds. Idle 5 seconds. Step 7 Accelerate gradually to 26 mph and decelerate to 0 within 40 seconds. Idle 15 seconds. Step 8 Accelerate to 27 mph in 40 seconds. Decelerate to 0 mph in 10 seconds. Idle 25 seconds. Step 9 Accelerate to 26 mph in 15 seconds, maintain speed for 10 seconds, decelerate to 0 mph in 10 seconds. Idle 15 seconds. Step 10 Accelerate to 23 mph in 20 seconds, decelerate to 0.5 mph in 10 seconds (no complete stop). Accelerate to 28 mph and back to 0 mph (momentary stop 1 second) within 35 seconds. Step 11 Accelerate gradually to 34 mph in 45 seconds. Vary speed between 34 and 19 mph for 2 minutes. Decelerate from 25 to 0 mph in 25 seconds. Idle for 5 seconds. Step 12 Accelerate to 29 mph in 15 seconds, decelerate gradually to 0 mph in 45 seconds. Idle for 30 seconds. Step 13 Accelerate gradually to 28 mph and back to 0 mph (momentary stop 1 second) within 50 seconds. Accelerate gradually to 27 mph and back to 0 mph within 55 seconds. Idle for 15 seconds. Step 14 Accelerate to 24 mph and back to 0 mph within 18 seconds. Idle for 10 seconds. Accelerate gradually to 22 mph and back to 0 mph within 50 seconds. Idle for 8 seconds. Step 15 Accelerate gradually to 30 mph within 50 seconds. Decelerate to 0 mph in 10 seconds. Idle for 25 seconds. Step 16 Accelerate to 23 mph and back to 0 mph within 30 seconds. Idle for 10 seconds. Step 17 Repeat steps 1 - 16 once again. Recheck the status of the "Readiness Monitors". NOTE:Remember, clearing DTC's or interrupting power to the ECM after the readiness monitors have been reset to "Ready" will require that the Drive Cycle be repeated.Completing the Drive Cycle successfully one (1) time should reset most drive cycle monitors to a "Ready" status. However, there are "two trip" monitors, which require that the drive cycle be successfully completed two (2) times, to achieve a "Ready" status. Furthermore, systems which use averaging, may require the drive cycle to be completed more than 2 times. It is necessary to perform only as much of the Drive Cycle as is necessary to reset the required monitors to a "Ready" status.End Drive Cycle
Why stihl chainsaw won't accelerate?
need to adjust high speed jet in carberator, turn in all the way then back out about 1 turn out and go from there.
Your car shakes sometimes when you start it when it shakes it cant accelerate as it normally does after you increase your speed it goes back to working normal what is the problem?
it sounds like your timing may be off
Is it true that a force is exerted when you breathe in and out?
Yes. In order for anything massive to accelerate, a force must be exerted. Your lungs have mass, and go from being stationery, to moving at a more or less steady speed, to stationery and then back again. The accelerate throughout this process and thereby experience a force.
Why does your 94 ford crown vic when you accelerate from 0-20mph pull back then lurch forward?
WHY DOES MY 95 FORD CROWN VIC WHEN I GO TO ACCELERATE FROM 0-20mph pull back the lurc forward
Speed of radio communication from earth to space?
Radio signals travel at the speed of light and all other forms of electromagnetic radiation. That means roughly 2.5 seconds to the moon and back, 8.7 minutes to Mars and back when it's closest to earth, 17 minutes to the sun and back, 9 years to the nearest star and back, etc.
Can you beat gravitational acceleration?
Yes, though this could mean many things. Acceleration due to gravity is ~9.81 m/s2 (~35.30394 kph/s), or 1g. Normal cars can't accelerate in a straight line this fast, but race cars can. When you turn a corner, you can accelerate more than 1g. Many things accelerate more than 1g. Particle accelerators accelerate particles at millions of gs. If you are falling, then you can use various forms of propulsion to accelerate faster than 1g. However, without propulsion, it is impossible to accelerate faster than 1g. All you can do is reduce drag, to improve how close to 1g you actually accelerate, and increase your terminal velocity. Escape velocity is the speed you need to be going initially so that the acceleration due to an object (say, the Earth) will never cause you to fall back toward that object. For the Earth (from sea level), that speed is 11.186 km/s (25,022 mph).
What are the wires in the back of a casette player for a 1992 sierra gmc?
i
How long is sierra mcclain hair?
Her hair is down her back.....
Is there more than one temperature sensor on a 1993 gmc sierra?
antifreeze coming from back of intake on 1993 gmc sierra
How long will a take you to pass a driver that is going 50 mph but your going 60 mph?
Your relative speed is 10 mph. At that speed you will cover an ordinary car length (4.5 metres) in 1 second. It will take twice as long for you to go from immediately behind to immediately in front: so 2 seconds. For driving safety, you should have started from 2 seconds behind and move back into lane when you are 2 seconds ahead. A grand total of 6 seconds.
