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Check engine light is on, car faulters under power

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Retrieve the error codes and post them here.

Posted on Feb 06, 2014


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Posted on Jan 02, 2017

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SOURCE: engine light is on, faulters under power

Have you had the computer checked for trouble codes ?

Posted on Jul 13, 2013

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Hi, outlet is live, the on switch lights up so the unit is getting power but the cooling unit is not working, the fan faulters and tries to turn but stops after 1/4 turn. Any suggestions ?

Please give me more details on what you're working on? Are you trying to repair an A/C unit? It sounds like I can help you just need more information.

Sep 21, 2017 | Cars & Trucks

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Check engine light came on then reduce engine power

When this light comes on it means the computer control module has detected a fault in the system, it has reduced power to avoid any damage to the engine or transmission. You must now have the computer scanned for fault codes, this is done through the diagnostic connector under the dash see photo below.

Sep 26, 2016 | 2006 Chevrolet Malibu

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Engine light is on, faulters under power

Have you had the computer checked for trouble codes ?

Jul 13, 2013 | 2000 Toyota Land Cruiser

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Need to know which sensors will take all power away from moter so it would only idle says reduced engine power

The TPS,or the TAC, or one of the APP (Throttle postion sensor ) if this faulter then yes you default to a set RPM, The (Throttle actuator motor) this maintain idle and if this faulter then yes you default to a set RPM or if one of the Accelerator postion pedal, When a power default occurs the whole throttle body usaually replaced either of these 3 component is the culprit

Mar 01, 2012 | Cars & Trucks

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I have been experiencing numerous electrical issues. ABS light, AIR BAG, Check Engine light are all lit. Left front turn signal does not work in front, but does on side. Both brake lights are out, but...

Check the voltage at the battery with engine on and engine off. maybe your regulator is allowing too much voltage and burning things up. These are all on different circuits. Have the car scanned to extract trouble codes. Autozone does free scans. Report the codes back to us if you need help troubleshooting. Check the brake light relay right away, as that is a safety issue. This post talks about checking relays:

Sep 24, 2010 | 1999 Pontiac Montana

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Why does my mercedes 320 n reg starts fine but while driving either faulters or cuts out will restart ?

Try checking the upper and lower engine wiring harnesses. From 1993-1995 MB was forced by the US to use biodegradable insulation on thier wiring which gets cooked by engine heat and falls apart. The same wiring is in the throttle actuator.

Feb 13, 2010 | 1995 Mercedes-Benz E-Class

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98 ranger 4,0 very hard to crank when it does it runs very rough for a couple of min then levels out but does not have the power it should

I'm not sure what you mean by being hard to crank. If you mean that the starter motor battles to turn over the engine it may be you have a flat battery. Otherwise if the engine itself is stiff to turn it may be much more serious. You can check this by taking out the spark plugs and putting the gearbox in neutral. You should then be able to turn the engine by hand by rotating the fan belt pulley.

If the engine is simply hard to start (requires a lot of cranking) and runs rough you may have an ignition timing problem. Check your ignition timing with a timing light. and take out and clean the spark plugs and set the plug gaps.

If your ignition is OK you may have a fuel supply problem. This will cause a drop in power. Commonly the engine will faulter if you accelerate hard. A common cause for a fuell supply problem is a blocked fuel filter. This is easy and cheap to replace so you may be lucky and this is your problem.

Oct 10, 2008 | Ford Ranger Cars & Trucks

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