Why does my car have intermittent electrical problems?
When symptoms become widespread and randomized poor electrical connections become suspect. Nevertheless, intermittent ground connections can cause some really crazy side effects. In this situation we have a failure of the main ground cable that runs from the battery to the engine block and frame.
What causes intermittent electrical problems in a Volvo?
A CEM module (or corroded connections at CEM) trigger intermittent electrical problems. Here are some problems you may notice. Brake, please make a safe stop error on the dashboard. Ignition issues, can’t start the car. Waring Lights Come On / Indicators failure. Wipers turn on randomly. Steering wheel hard to turn.
When do intermittent electrical problems cause crazy side effects?
In extreme circumstances the entire truck loses power. Whenever crazy things like this happen my mind starts going to a ground connection problem. When symptoms become widespread and randomized poor electrical connections become suspect. Nevertheless, intermittent ground connections can cause some really crazy side effects.
Where can I find information on intermittent electrical problems?
Another source that can often provide insight and answers for hard-to-diagnose faults like intermittents is the International Automotive Technicians Network (www.iatn.net). Thousands of technicians worldwide belong to this group and share their knowledge and experience in the form of posts and follow-ups.
What causes intermittent electrical problems in a Volkswagen?
Intermittent problems can be the hardest to track down. The car hits a bump and the break in the wire opens. The car hits another bump and the break closes. The owner checks fuses and tries to duplicate the problem in front of a technician but everything works flawlessly. Frustrated owner begins to believe the car must be possessed. Reply
Why are intermittent electrical problems the worst problem?
And this is why intermittent electrical problems remain some of the worst issues to solve. With that said, enough people have had the issue, that the problem finally got solved. Customers complain about intermittent power outages throughout the vehicle. Sometimes the power door lock starts going off by itself or the dash lights go out.
What to do if your car has intermittent electrical problems?
The best approach to dealing with intermittent electrical faults is a logical approach that will help you find and fix the fault now, so here are some tips on how to proceed. First, go online or search your service database for any vehicle manufacturer TSBs that may shed some light on the problem.
What does it mean when your car is running intermittently?
Chasing intermittents is like chasing ghosts. One minute the fault appears, the next minute it vanishes into thin air. Worse yet, the problem may occur at random intervals with no apparent connection to driving conditions, temperature or humidity. And if you can’t get the fault to appear long enough for you to catch it, you can’t fix it.