Question about 1991 Ford Ranger Supercab

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Tachometer not working

Engine sluggish

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Possible crankshaft position sensor if this was helpful please leave me good feed back

Posted on May 05, 2013

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Why does my rpm not work?


Tachometer
The instrument panel cluster (IPC) displays the engine speed as determined by the engine control module (ECM). The IPC receives a serial data message from the body control module (BCM) indicating the engine speed. The tachometer will default to 0 RPM if:
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The ECM detects a malfunction in the engine speed sensor circuit.


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The IPC detects a loss of serial data communication from the BCM.

Jan 07, 2016 | 2009 Pontiac G6

1 Answer

Tachometer not working fuses good ware dose tachometer get its siginal


From the ECM - engine computer ! Suggest you take this to a ASE certified repair shop or the Chevy dealer an have it diagnosed ! Could be the gauge itself .Looking at fuse's is no good ,there is not a fuse just for the Tachometer .
The engine control module (ECM) creates the engine speed signal. The engine speed is sent to the IPC over a discreet wire from the ECM. The instrument panel cluster (IPC) converts the signal to a tachometer position indicating the engine speed.

Dec 31, 2015 | 2008 Chevrolet Chevrolet Aveo 5 Special...

1 Answer

When you full throttle it, it never sounds like its at full throttle. Sounds sluggish


sound is deceiving, unless you know exactly what your listening for. use a tachometer

Jul 30, 2015 | Cars & Trucks

1 Answer

Tachometer shows engine is running fast. engine is idling. you can thump the dash and the tach will settle down a little. how can i fix this 2004 new holland 29da tractor


well tachometer dont lie it tells how many revolutions engine turns a minutes in which it is firing per minute..tachometer could have poor loose wire connection.

Sep 21, 2013 | Cars & Trucks

1 Answer

2003 chevy trailblazer tach inop


The tachometer in your truck is controlled by the Instrument Panel Cluster (IPC) module, which recieves engine speed information from the Powertrain Control Module (PCM) via the digital communications network in your truck.

There may be an engine control problem that is causing your engine to run rough and cause your tachometer to not operate as well. However, there is no way that the tachometer itself is going to make the engine run poorly. The tachometer has no fuse of its own that does not also affect several other electrical circuits in your truck. Looking for the fuse as a possible fix for your problem is totally useless.

What you need to do is to scan your onboard computer network, incluuding the PCM, BCM, IPC and the ABS modules to see where the problem is located. It may even be a communications network error. There is no way of knowing for sure without establishing communications with the network and interfacing with all of the control modules that use the tachometer signal to perform certain functions.

PLEASE NOTE: Generic OBD code readers CANNOT perform the functions that will be needed to diagnose and repair this problem.

May 06, 2012 | Cars & Trucks

1 Answer

2005 Buick LeSabre tachometer not responding when engine is running. Tachometer stays on "0" when enige is running. Slight movement as acceleration increases; however needle barely moves as...


2005 BUICK LESABRE TACHOMETER DOES NOT REGISTER WHEN ENGINE IS RUNNING. SOMETIMES IT BARELY MOVES, THEN GOES BACK TO 0
SAME CAR HAD SPEEDOMETER QUIT, REPLACED WITH NEW SENSOR, DROVE ABOUT 1300 MILES AND IT QUIT AGAIN. CLEANED THE SENSOR, WORKS OK NOW.

Oct 30, 2010 | 2005 Buick LeSabre

1 Answer

Tachometer on my 1986 fiero gt is out of calibration it ,engine runs right but tachometer is off the graphs limits.


There's a good chance that the tachometer switch setting on the tachometer is broken. They use the same tach for different engine sizes and change the amount of cylinders with the switch. You might have to replace the tach

Jun 15, 2010 | 1986 Pontiac Fiero

2 Answers

I have a 2001 Pontiac Grand AM SE, 3.4 Liter V6 with 243,000 Miles. When trying to maintain a steady speed the car thrusts or pulses and I notice that the engine tachometer jumps. This condition occurs at...


This condition can also be caused by a bad set of sparkplugs and or a bad set of ignition wires, I would change these first and if the problem persist ,,Flush the injectors ..

Jan 21, 2010 | 2001 Pontiac Grand Am SE

1 Answer

Dash Gauges out! but still drives


I have the same problem, except for my maxima after it comes to a stop is sluggish starting off. Have you fould out the problem to yours yet? Thanks, Cathy

Oct 01, 2009 | 2006 Nissan Maxima

1 Answer

Sluggish slow acceleration


Check that transmission fluid if its an automatic, should be full and clean, if manual trans clutch probably slipping

Jan 18, 2009 | 1993 GMC Sierra K1500

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