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Momentarily pulls left when accelerating (feels drifty/floaty like being pushed sideways by a strong breeze) then pulls right(same thing) when letting off accelerator. No play/slop in steering.

Posted by Anonymous on

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If you are driving any front wheel drive vehicle, what you are feeling is called torque steer....sometimes it's from poor design but it can also be caused by a broken engine or transmission mount allowing the engine/trans assembly to shift under load or when removing load.
You can do a quick test by holding the brake down firmly and in gear, press down on the gas. have someone watch (from the side of the car ONLY) and see if the engine shifts. Do in both drive and reverse.
Be very careful when doing this that the car does not get away from you and do not hold power for more than about fifteen seconds at a time or it can overheat the transmission. This only works in automatic trans cars... for stickshift ones you need to move the engine with a long pry bar.

Posted on May 09, 2010

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Where is the fuse for cruise control on a 2003 envoy


It is HVAC 1fuse #39 in the rear fuse block ,this powers the on/off switch for cruise control ! Fuse Block - Rear Beneath the left rear seat. What engine does it have ? 4.2 L or 5.3 l There is no vacuum involved in the operation of the cruise control ! Your vehicle has electronic throttle control .
Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions at vehicle speeds above 40 km/h (25 mph). Steep grades may cause variations in the selected vehicle speeds.
The following are the main components of the Cruise Control System:
?€¢
The powertrain control module (PCM)


?€¢
The On/Off switch


?€¢
The Resume/Accel switch


?€¢
The Set/Coast switch


?€¢
The TCC brake switch


?€¢
The stop lamp switch


?€¢
The throttle actuator control (TAC) motor


?€¢
The vehicle speed sensor


Cruise Control Engaged
The cruise control system will engage and adjust the vehicle speed based on the activation of the following cruise control switches:
?€¢
On/Off


?€¢
Resume/Accel.


?€¢
Set/Coast

The cruise control switches are located on the multifunction/turn signal lever.
The powertrain control module (PCM) monitors the signal circuits of the cruise control switches in order to determine when to capture and maintain the selected vehicle speed. The PCM uses the throttle actuator control (TAC) module motor in order to control the vehicle speed. For further information on the TAC System, refer to Throttle Actuator Control (TAC) System Description in Engine Controls - 4.2 L.
Ignition positive voltage is supplied from the 10 ampere HVAC 1 fuse to the cruise control switch via the ignition 3 voltage circuit. When the normally open cruise control On/Off switch is turned On, the switch closes and the PCM detects a high signal voltage on the cruise control on switch signal circuit. When the normally open Set/Coast switch is pressed, the switch closes and the PCM detects a high signal voltage on the cruise control set/coast switch signal circuit. To engage the cruise control system, turn the On/Off switch On and momentarily press the Set/Coast switch. The PCM will confirm that the cruise control enable criteria has been achieved. The PCM will engage the cruise control system and record the selected vehicle speed. The PCM sends a class 2 message to the instrument panel cluster in order to illuminate the cruise control indicator. Pressing the accelerator pedal, while the cruise control system is engaged, will allow the driver to override the cruise control system in order to accelerate the vehicle beyond the current set vehicle speed. When the accelerator pedal is released, the vehicle will decelerate and resume the current set vehicle speed. The driver can also override the current set vehicle speed via the Set/Coast switch and the Resume/Accel switch. When the cruise control system is engaged, pressing and holding the Set/Coast switch will allow the vehicle to decelerate from the current set vehicle speed without deactivating the cruise control system. When the Set/Coast switch is released, the PCM will record the vehicle speed and maintain the vehicle speed as the new set vehicle speed. When the cruise control system is engaged, momentarily pressing the Set/Coast switch will allow the vehicle to decelerate at 1.6 km/h (1 mph) increments for each time that the Set/Coast is momentarily pressed, with a minimum vehicle speed of 37 km/h (23 mph). When the normally open Resume/Accel switch is activated, the switch closes and the PCM detects a high signal voltage on the cruise control resume/accel switch signal circuit. Activating and holding the Resume/Accel switch, when the cruise control system is engaged, will allow the vehicle to accelerate to a greater vehicle speed than the current set vehicle speed. When the Resume/Accel switch is released, the PCM will record the vehicle speed and maintain the vehicle speed as the new set vehicle speed. When the cruise control system is engaged, momentarily activating the Resume/Accel switch will allow the vehicle to accelerate at 1.6 km/h (1 mph) increments for each time that the Resume/Accel switch is momentarily activated, with the maximum acceleration total of 16 km/h (10 mph) over the current set vehicle speed . Momentarily activating the Resume/Accel switch, after the cruise control system has been disengaged by pressing the brake pedal, will recall the previous set vehicle speed that is recorded in the PCM.

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2 Answers

2003 Altima 2.5 Deceleration Jerky above 40 mph and pulls left momentarily


Get the front end jacked up and safely supported and check out the control arm bushings for looseness, the CV joints and if noting found pull the left wheel and brake caliper off and make sure the calipers slides or pins are clean and properly lubed to allow the caliper to release properly.

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Shift solenoid


If you are attempting this when moving it helps to break the load on the gears by depressing the clutch momentarily or if auto then lifting the foot of the accelerator for a second .

Jan 09, 2014 | 1999 Chevrolet Blazer

1 Answer

Accelerator stuck momentarily Can't get it to repeat problem. Any suggestions?


I have a 03 pathfinder with a similar issue. I am not sure its the accelerator ..it happens when switched into gear and also comes and goes. It is full throttle when it happens..maybe an electronic problrm

Jan 21, 2011 | 1997 Nissan Pathfinder

1 Answer

I want to know how to use my cruise control in my 1994 Toyota pickup. It has all the buttons and the capability but the words are scratched off and i don't have a manual.


Generally... There is ON/OFF - SET - ACCELERATE/RESUME, COAST/DECELERATE. Cruise is available at speeds above 35mph or so. Sometimes there is no main on/off. Cruise on a turn signal stem has a button that pushes in on the end, push when at desired speed. resume/accelerate slides to right, is spring loaded and return left when released. the same lever when slid left is coast/decelerate. Momentarily sliding accelerate and releasing increases crusing speed by a couple mph. If brakes are used cruise disengages, sliding resume returns you to cruise speed after braking. Coast/decelerate disengages cruise, when at desired lower speed hit set. On some, hitting set not needed, when coast is released speed is maintained. Variations may be up/ down instead or may be steering wheel face mounted. Please rate answer. Duct tape is like the force, it has a dark side.. a light side.. and holds the universe together!

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1 Answer

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1 Answer

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It could be, but I doubt it. The most likely cause is you need a new alternator. Pull your alternator and take it to a parts store and they can test it.

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Feels like fuel isn't getting there?!?


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