Q: Ground wire off oil pressure sensor melts

asked by on

Car will start no problem but some times the wire from the oil pressure sensor will smoke and the car will not crank, then take key out, put back in and it will run no problem, wire is not smoking. Take key out put back in try to crank and the wire smokes and car does not even crank.

My car has 180000 miles.
My car has a manual transmission.

The wire to the oil pressure sensor is only a ground connection from the oil pressure sensor to the instrument cluster.

If you are seeing this wire smoke like it is getting melted, then you have either a short to power on this wire somewhere in the wire harness or the gauge cluster is shorting.

The vehicle is not starting most likely due to this short. I suggest having a mechanic come and check the vehicle’s starting issue out before you have a wire harness catch fire or the short happens when the key is off and you would not know that it caught fire.

Do not park the car inside a garage until the problem is checked out. You may have a defective instrument cluster or ignition system. Look under the left side of the dash to make sure your clutch pedal arm is not shorting wires out when you push on the pedal.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Ground wire off oil pressure sensor melts

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Doesn't stay running when I hit 35 mph.

Hello. We will be happy to assist you. The vehicle cutting off will likely be related to a couple of things. Weak fuel pressure (could be caused by a faulty fuel filter or fuel pressure regulator) bad crank position sensor,...

Q: What size triple star do i use to remove alternator in a 200r audi quatro a4 1.8

Hello. The triple should be a 12mm for the bolt you are referring to.

Q: I have just bought a 2005 bgeetle convertible and when I unlatch the top and press the button the back windows go down halfway tha

Hello, thank you for writing in. The windows should be rolled down when the convertible top is put down. Some models do this automatically so that the top does not scrape down the windows when moving. However, Beetles in this...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.