Hey Scotty I have 2009 Dodge Charger 3.5 RWD I've had a problem since the end of 2018 that isn't getting diagnosed, in the morning upon cold start when I drive if I press the accelerator half way the power cuts off and then comes back on again and starts running this happens for the first 5 to 7 minutes of driving then the car becomes normal and is not as bad for the rest of the day running but after leaving it parked for about 4 to 5 hours the problem reappears but not as bad as it's in the morning cold sart. I've even changed the fuel pumps plus throttle body, fuel pump relay but still the problem persists and I've run out of options theres no check engine or any other lights on. The scanners are not picking up and stored or live codes

Do you think there’s something up with the intake air temperature sensor? How do I test it?

All it’s troubles are cold start and drive related

Another problem with it was up on cold start it will start hard or sometimes start up right and 3 seconds later shut down and then by itself start up again and be fine from there on

I'll appreciate any help about my car's problem, I’m on thin ice financially can’t just get rid of this car and get another plus you know Dodge’s resale

Thank you Derek

Comments (9)
No. 1-4
DerekDubin275
DerekDubin275

Got the intake temp sensor and coolant sensor checked they’re working fine. The guy has a Autel pro scanner and he’s telling me to go to stealership because his scanner isn’t pulling any codes for some reason. Got home thought I’ll check the o2 sensors next morning used my basic scanner on cold engine it shows the voltage on my 4 oxygen sensors is within normal range. Any suggestion what should I test next?

Techsus
Techsus

Scotty often warns about aging Dodge troubles w/ electronics that causes squirrelly problems. Thoroughly OBDII scan it. Get your Trouble Code(s). Report back once you have those.

Shadetree Tony
Shadetree Tony

Well...when you say "power cuts off then back on again"... Do you mean the engine dies completely? Or does it simply choke/sputter? And if it dies, does it die cleanly without a pop, or does it kind of cough a bit in the process?

Shadetree Tony
Shadetree Tony

It sounds like ignition problems. Maybe as simple as a coil, but anywhere between there and back to the computer. Bad coils can be sensitive to temperature.