Q: Electronic throttle control light and dead battery? 08 Dodge Avenger SXT

asked by on

I had to take my 08 Dodge Avenger SXT to the shop because it was stalling out (even while driving) and the electronic throttle light was coming on. they did an oil and spark plug change and put in a new etc.

I picked it up from the garage and halfway home its started cutting off again and etc light comes on again.

No bad battery light activated throughout these problems. I Had it towed back and now they say a new battery will fix it, but the etc did need to be replaced. Does this sound right?

My car has 380000 miles.
My car has an automatic transmission.

Hey there. The only way to determine if the battery could be a cause (or part of the cause) of the engine stalling is to test it. Typically, a "load test" (very standard and reliable) would be applied to the battery (check alternator output, too, of course, as that is very easy). It would be unwise, and a waste of money, to replace the battery unless it fails a load test.

Finally, be sure that the results of the load are actually shown to you (trust but verify). The ECT light can illuminate due to other engine faults. So one would hope that they actually tested your old ECT to be sure it was defective. There should have been stored diagnostic trouble codes (at the time of the initial failure and now, too) which would aid in the diagnosis, as well as possible freeze frame data.

If none of that diagnostic information was accessed and recorded on the shop records when they serviced your car, basically the mechanics were likely just guessing on the complete diagnosis (sorry to say). At this point, yes, test the battery. But if tests good, the cause of the stalling will have to be methodically diagnosed.

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. Electronic throttle control light and dead battery? 08 Dodge Avenger SXT

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: Hybrid system check light

It's possible, these vehicles are known for having fuel pump issues. On Toyota and Lexus hybrids, a red triangle is the master warning light, which can indicate anything from a problem with the hybrid system to a burnt out headlight....

Q: Car starts up but when I go to drive it doesn't accelerate fast and it takes a while to catch up

Hello. The engine computer will need to be re adapted or re learned to the new throttle body. This will require a high end computer scan tool or a GM tech 2 scanner. A technician, like one from YourMechanic, can...

Q: Electricity gauge reading low voltage. Just charged my battery and replaced alternator in April. Connections look good.

Hello - the first thing to check is the electrical system voltage with the engine running at a fast idle - which should be 13 volts or above. Check this with a known good voltage meter - auto gauges are...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
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.