Question about Cars & Trucks
Rev meter not woking ,engine sign has come on and car just stops while driving
Sounds like an ignition problem, but without knowoing the year / make / model anything is possible
Posted on Jan 06, 2013
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Posted on Jan 02, 2017
This may be the Vehicle Speed Sensor (VSS). It generates the speed signal that drives the speedometer and gives the signal to the electronic transmission control. It is a sensor that has a plastic gear on the end that is turned by the transmission. Look at the speedometer when the transmission shifts to neutral on its own, if you are moving, and you will see it at 0 MPH if its the VSS. It may or may not show up as an OBD-II code P500,(VSS fault) or P502 (VSS intermittent). My 1998 used to do the same thing when I left the driveway, but only in the morning. It would electricallly shift to neutral, I would put shifter to N and back to D and it would be OK. It continued occasionally for about two years with no codes or Check Engine light until it suddenly got worse and it would not correct itself after ******** to N and back to D. The code then showed up as P500 or P502. The VSS is about $50 at NAPA or about $25 at Advance or AutoZone. It is a pretty easy but hard to see replacment. (get a Craftsman round inspection mirror) It is located in the top of transmission, passenger side, sort of under cylinder #1. It is held in by one small bolt. I think I used a 10mm 1/4" drive socket to get it. A Haynes book will help, but beware, they don't tell you that the VSS is enclosed by a square tube heat shield and the photos stink. You will see the wire going into the square shield tube. Pull the shield up to get to the VSS and unplug the wire. IMPORTANT: Haynes says to check the VSS output for a pulsed AC voltage output. My VSS produced a pulse voltage when rotated, but it was still bad. IMPORTANT: take old VSS with you to match new one. There are more than one part called out for this year model and they look almost the same. I hope this helps..
Posted on Feb 12, 2009
If you have had a bad enough problem with the fuel filter, and it is not the fuel pump I would have to say it is the injectors. If your car is fuel injected there could be dirt in the injectors in which case they will need to be replaced. The problem is you can flush the whole fuel system except for the fuel injectors themselves. Though I am not sure how to check them myself, a mechanic could tell you if this is the problem in minutes. I cant say for sure if this is your problem but I have a 79 corrolla and it is doing the same thing and since I have replaced almost the whole fuel line except for the injectors themselves this is what I am leaning towards. Good luck!
Posted on Jun 08, 2009
SOURCE: mazda 626 hold light flashes
it's probably the problem with the sensor failure or the switch fails to completely off the current flow, it's a miner issue so for hazel free drive do visit the nearest MAZDA authorized service station or see for a good skilled & experienced mechanic who may sort out this problems so till the next this is siddhesh saying bye for now feel free to ask any quires regarding automobile field we will be happy to help you so till the next time have safe drive & happy motoring.
Posted on Oct 08, 2009
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