Q: My car starts and then dies.

asked by on December 25, 2016

The check engine light codes just came on, and they were the codes for a new Throttle body position sensor and engine coolant temperature sensor. So I swapped these out and now the car will start and then just die. Does the TPS need to be installed a certain way or adjusted?

My car has 256000 miles.
My car has a manual transmission.

Hi there. Try unplugging the new throttle position sensor (TPS) and see if the engine runs normal and does not stall out. If so, then check the idle air control valve (IAC) and see if its functioning. The IAC could be not functioning if the engine is stalling with everything hooded up properly. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from Your Mechanic, that can assist you with your stalling situation.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

While driving, car will stall

You will need to have the charging system and battery system checked to see if the alternator is putting out enough volts and amperage to recharge the batteries. The alternator is the most common failure to correct the problem for...

Car says "run mode change system check"

Hi there. This problem seems to be unique to Subaru's and tends to be caused due to a failure within the ECM. The only way to pinpoint the source of this code and determine a course of action is to...

ABS ON after 18MPH

The light comes on after 18mph since this is the speed where the ABS will start to work on your car. The light is coming on due to one or more wheel speed sensors are not sending a signal to...

Car shuts off when I come to a stop - 2007 Dodge Charger

Hello. This behavior suggests "lean running" problems at low speed, a scenario which gets worse with colder weather. This could be caused by a clogged or malfunctioning idle air controller and/or throttle body, dirty or clogged injectors, an EGR valve...

Randomly stalls when driving

This may be related to many different things such as fuel-related issues like dirty or leaking fuel injectors, a bad mass air flow sensor, low fuel pressure. Depending on the symptoms prior to the truck stalling, this may also be...

Water in oil.

Water in the oil usually mean you have a blown head gasket. This happens normally when the engine overheats and warps the head causing the water to leak into the oil passages of the head where the gasket meets the...

radiator and overflow full, car is steaming but not overheating according to indicator gauge. can i drive it?

Hi Ronda. Thanks for contacting us today. It's quite possible that your thermostat or coolant temperature sensor is what is causing this issue. If the gauge is malfunctioning, it will cause the coolant to run hotter than it should, creating...

Hesitation/stalling when engine gets warm.

It sound like the fuel pump is stopping after it gets hot. A problem with the pumps starts when it begins to stall intermittently and get worse and worse over time. It may start up and go for a while...

Car stalling at first start, black smoke from exhaust

Hello. There are a few possibilities for why your car is stalling when you first start it. Your car’s coolant temperature sensor could be sending the wrong information to the PCM, which will cause the PCM to send the wrong...

Related articles

How to Replace the Speedometer Sensor on Most Cars
The speedometer has a sensor that fails if the speedometer or cruise control do not work, the Check Engine Light comes on, or the vehicle loses power.
How Long Does a Coolant Level Sensor Last?
The The coolant level sensor uses a moveable float device and a reed switch that senses when the radiator has low coolant. Once the sensor detects low coolant, the driver is alerted by a light illuminated on the dashboard. The...
How to Replace a Speed Timing Sensor
Some signs of a failed speed timing sensor include a Check Engine Light and poor performance. It's also known as the crankshaft position sensor.