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Ford f800 engine warning light

I have a 1999 ford f800. the engine warning light comes on. and the power is reduced. the engine code says "engine speed". what does this mean and how do I fix it?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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baccardo
  • 150 Answers

SOURCE: reduce power and check engine lights on

reduced power usally points toward a gas pedal to throttle correlation meaning the drive by wire system is where the problem is

Posted on Apr 18, 2009

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abauto
  • 353 Answers

SOURCE: why does reduce engine power light comes on chevy

That is a hard problem to pin point without knowing what codes the computer has stored. It can be any number or sensors or engine problems.

You can go to most auto parts stores and they will pull the codes for you for free.

Posted on Jul 27, 2009

Molson02536
  • 3854 Answers

SOURCE: my check engine light comes on often, followed by

If your lucky, your car is still under warranty. If your warranty is over, you can go to Auto Zone and have the car scanned for the DTC codes. The DTC codes will inform you the issues that need to be addressed so you can have your car running 100% again. Note: Auto Zone scan free of charge and can give you the step by step instruction to address the issues free of charge and if there are any parts that need to be replace, there parts price are reasonable and most of the time are life time replacements. Good luck and keep me posted, be glad to help you get your car running 100% again soon

Posted on Oct 19, 2009

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ZJLimited
  • 17970 Answers

SOURCE: I dont have a manual for 1999 Ford Winstar - there

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BULB WARINING
Iluminates when the ignition is in the ON position and one of t eexterior bulbs has burned out.

Also, in here can find the 1999 Ford Windstar Owners Manual

I hope helps with this (remember rated this help) Good luck.

Posted on Dec 30, 2009

  • 396 Answers

SOURCE: reduce engine power 2007 chevy uplander

Sopunds like the computer has gone into a limp mode. You need to take it in for a professional diagnosis.

Posted on Jan 16, 2010

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2 Answers

Diesel. Reduce power lite turned on. Shut off engine and started back up - lite is off. Can it be driven?


Jerry, Drive to a good shop. So many things can cause reduced power light unfortunately. The first step would be to get the truck hooked up to a scanner/computer and have the computer scanned for trouble codes. One thing that you could try is to drain the water from the water separator that is mounted on the frame under drivers front door. If the PCM picks up on water, power is reduced until water is removed/drained. It could be an exhaust sensor that is reading faulty. Unfortunately from here its impossible to tell you exactly what the fault is because there are just so many engine sensor inputs that could cause your problem. Check the attached links, forums,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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1 Answer

Engine light on and dash warning says---reduce engine power. and it is reduced. what's wrong??


Many things cause reduced engine power. Could be engine sensors/parts or could be transmission sensors/parts. You need to have the codes read. Repost with them and we can help you with your problem. Year, make, and model also helps..

Jan 14, 2015 | Cars & Trucks

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1999 4.6L V8 Ford Expedition has no pulling power


If the check engine light is on (from the misfire from the crossed wires), the computer is in "reduced power" mode. You need to clear the codes with a scan tool and try again.

Dec 04, 2014 | Ford Cars & Trucks

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What causes the "Reduced Engine Power", "Service Stability Control" and "Traction Control" warning lights to come on?


the "Reduced Engine Power", problem causes the PCM to disable "Service Stability Control" and "Traction Control" turning on the warning lights to come on for those systems . The reduced engine power is because of a problem with the electronic throttle control system or as GM calls it TAC system . Reduced Engine Power Mode
When the PCM detects a condition with the TAC system, the PCM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The PCM will continue to use the accelerator pedal for throttle control, however, the vehicle acceleration is limited.
• Limited throttle mode--The PCM will continue to use the accelerator pedal for throttle control, however, the maximum throttle opening is limited.
• Throttle default mode--The PCM will turn OFF the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The PCM will perform the following actions:
- Limit engine speed to idle by positioning the TP, or by controlling the fuel and spark if the throttle is turned OFF.
- Ignore the accelerator pedal input.
• Engine shutdown mode--The PCM will disable fuel and de-energize the throttle actuator.
© 2017 General Motors Corporation. All rights reserved.



Drive by Wire training Your best bet , take it to a GM dealer

Mar 04, 2017 | 2005 Pontiac Grand Prix GT

1 Answer

Reduced engine power


Have the vehicle checked for DTC'S - diagnostic trouble codes ! Do you know what electronic throttle control is ? The gas pedal assembly has electrical connector an sensors inside ,hooked to the PCM / ECM - engine computer . The engine computer uses these position sensors inputs to control the DC motor on the throttle body to open the throttle plate to control the speed . Plus there are position sensors inside the throttle body to input PCM/ECM to see if it's calculations are corect . Your best bet maybe to take it to a qualified repair shop .
Drive by Wire Function and diagnostics by Wells

Reduced Engine Power Mode
When the PCM detects a condition with the TAC system, the PCM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The control module will continue to use the accelerator pedal for throttle control; however, the vehicle acceleration is limited.
• Limited throttle mode--The control module will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.
• Throttle default mode--The control module will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The control module will perform the following actions:
- Limit engine speed to idle by positioning throttle position, or by controlling fuel and spark if throttle is turned off.
- Ignore accelerator pedal input.
• Engine shutdown mode--The control module will disable fuel and de-energize the throttle actuator.

May 12, 2017 | 2004 GMC Sierra Denali

1 Answer

1999 ford expedition check engine light does not come on when you first start it. So it failed smog check


The check engine light gets power from the same circuit and fuse as the seat belt and some of the other warning lights.
And the ground comes from the computer.
So if the other warning lights work, and the bulb for the check engine light is not burned out, the problem is in the wiring or in the computer.

Feb 20, 2013 | 1999 Ford Expedition

1 Answer

Engine power reduced


If the warning liught come on, I suggest scanned the computer car in order to know what fautl code is stored there; note this code num ber and send us for other details.

Aug 23, 2012 | 2006 Pontiac G6

2 Answers

Reduced engine power light, Engine light and Traction control system warning light are all on


Yeah I have the same problem. The Check Engine, Reduced Engine Power Light and TC Control Light are all on at the same time. It will go off by itself after a few days and then comes back on. I've tried disconnecting the battery and that has worked in the past but this time it is not working. Anybody have any suggestions?

Aug 12, 2012 | 2006 Pontiac Torrent

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