Question about Cars & Trucks

1 Answer

What sensors and/or modules should I look at for a tachometer problem?

Intermittent tach mostly reads zero. Eng starts promptly. Occasionally stumbles momentarily at 50mph. DTS codes PO300 thru 306 random misfire all cyls. PO320 ign/dist eng speed ckt.125k miles. timing belts and crank pos'n sensor replaced at 100k as preventative maint.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 5,351 Answers

Test ignition module.

Posted on May 01, 2015

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a malfunctioning Tachometer. How it is fixed? What's the consequence of a malfunctioning tachometer? Thanks for your help.


this could be the tach meter itself. there is no bad consequence to driving it this way just annoying.

Aug 31, 2015 | Cars & Trucks

1 Answer

1996 Outback Tachometer intermittent


If you have no other symptoms other than a faulty reading then it can be 2 things, leaking ignition high voltage wires or a faulty tach, i would go with the tach.

Aug 25, 2012 | 1996 Subaru Legacy

1 Answer

Tachometer on 2001 buick park avenue stopped working


You most likely just need the tach repaired, they do fail. There is a company called Speedotach that repairs these as well as others, just google it

Jun 12, 2012 | 2001 Buick Park Avenue

1 Answer

My 2004 Kia optima recently died while being driven, I had it towed home...i replaced the fuel pump(fuel filter and fuel pump strainer), it also has a new battery. It started up just fine after the fuel...


Then you have a intermittent spark . Now do you have a spark tester to test spark. Its okay if you dont we have one . Oh by the way you did the fuel pump yourself. if you can do a fuel pump then you can do this to solve the no start problem. No spark tester? okay we will use that tachometer (RPM gauge). crank the engine does the tach meter reads zero at all times while cranking, if it does youll need a crank sensor. Here the story Rough running conditions and or stalling was caused by a faulty crank sensor, try shaking the connector or wiggle the crank connector then see if it starts. Youll need to inspect the connection for proper male to female connection these have been the most suspectable failure of KIA. If you decide to replace this sensor make sure connections are good, more than likely this was the problem and not the fuel pump

Apr 27, 2011 | 2004 Kia Optima

1 Answer

Why does the tach and speedometer now spike when starting engine?


depends. newer vehicles do this just for effect, basically for you to go "ooooohhh" however with older vehicles ( pre 2006) this could be a code that the computer system is giving you, if the needle spikes all the way to the end of the speedometer/tachometer then back down to zero, its most likely effect. but if the needle spikes to 3 numbers (ex-90, 60, 30. then back to zero) its trying to tell you theres something wrong under the hood, could be as simple as a fuse or 02 sensor...

Sep 20, 2010 | 2001 Ford Escape

1 Answer

When i connect my colant temp sw my car stumbles?


The coolant temp sensor is shot. Replace it. When it is connected, it gives the ignition module erroneous temp readings, and computer reacts randomly.When sensor is disconnected the car behaves as if it was cold, and it runs steadily, but probably not burning efficiently, and more important, module detects the missing sensor, and turns on the check engine light.

Mar 19, 2010 | 1992 Honda Accord

1 Answer

Defective tachometer and speedometer


Do the following:1)key in the ON position:remove the 7.5 gauge fuse.Tach needle should read "0:". 2)put it back,go on the engine and unplug the green plug on the igniter -the big one,with 5 or 6 wires on it.The needle on tach reading should be zero.If not you have a short circuit on the black wire between that plug and the plug on the conbination meter.3) If the reading is zero with the plug disconnected,the black wire for the tach is short-circuited inside the igniter. I have one available.email daddykouki@gmail.com

May 30, 2009 | 1989 Toyota Corolla 2 Door

1 Answer

Tachometer fails to work all of the time


You will need to remove the tach and have it repaired by a factory authorized service center, don't go through the dealer, they will 2X the price.

Oct 03, 2008 | 1997 Mitsubishi Montero

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

78 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

77202 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...