Q: Leak caused by corrosion on throttle body terminal

asked by on

The check engine light came on and it reads “reduced engine power.” I went to the local auto shop and it was reported to me that the throttle position sensor was the problem and I would have to take it to a mechanic. When I went to the mechanic, he said that it was not the throttle position sensor, but that it was a leak caused by corrosion on a terminal within the body of the throttle which connects the TPS. They explained it might take two days to work on it. Since I can’t take off from work right now, can you tell me where to find the connector on the throttle body and I will clean off the corrosion myself. Then later when I can get off from work, I’ll take it in for the leak repair. Thank you.

Hello. There are some fairly sensitive electronics inside the throttle position sensor (TPS) housing. They are also not engineered to be easily disassembled for repair either. Unless you are quite experienced at unsoldering and soldering printed circuit board connections, I would not recommend trying to repair this yourself. In addition to considering a new TPS, there are a number of national auto electronic rebuilders who can provide a rebuilt unit (w/warranty) on an exchange basis. They send you a rebuilt unit, which has also been re-sealed, and you send them your old one.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Leak caused by corrosion on throttle body terminal

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: My brakes / calipers are rusty and now are leaving rust stains on driveway. How can I stop this? 2007 Nissan Frontier

Hello - I'm speculating you live up in the snow belt where salt and other corrosive chemicals are dumped on the road, and cause rust and corrosion. Unfortunately, the only real way to stop the rust stains you mention are...

Q: Will throttle body cause powertrain warning light to come on in my 2005 Jaguar X-type

Hello. If the throttle body is failing then it can cause the vehicle to go into reduced power mode and set a code in the computer. I usually start by scanning the computer for codes. By doing this I can...

Q: Engine makes clicking sounds while idling and at lower speeds

Hey there. The first noise you described sounds like valve lifter noise. You will hear this sound if the engine is low on oil. Check the oil level and add if necessary. The lifter noise is not heard at higher...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.