Electronic issue

Tiny
PAPAFRAW
  • MEMBER
  • 2004 LEXUS ES 330
  • 6 CYL
  • AUTOMATIC
  • 130,000 MILES
This started yesterday. I want to give my mechanic a general diagnosis so I don't get charged for checking every wire in the vehicle. I would turn and the A/C would still run but the cooling would go out. Just blowing hot air. Driving on the way home, the power steering would go out turning a slow speeds (both directions and in reverse). Today I was trying to diagnose it and now whenever I turn the car's electronics restart like I just turned the key (car lurches, engine skips when I turn, etc.) Is this the battery, alternator, wiring, etc?
Wednesday, August 19th, 2020 AT 10:22 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good afternoon,

So what is not working? Is it the A/C system? Do you have an engine running issue?

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Your post was not very clear on the exact issue. Please give me as much information as you can.

Roy
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Wednesday, August 19th, 2020 AT 10:39 AM
Tiny
PAPAFRAW
  • MEMBER
  • 2 POSTS
The A/C fan blows, but does not blow coolant (I just recently replenished it). Whenever I turn the wheel, all electronics restart and the engine skips for a split second. It started with the A/C, then the power-steering would go out, and by the end the electronics would restart completely (lights, A/C, power steering, engine, and radio skip, and the car beeps as if key was in). Is this an issue with the alternator? To summate, whenever I turn the steering wheel, something bad happens.

I hope this cleared things up. If not, please let me know.

-GHF
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Wednesday, August 19th, 2020 AT 7:28 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Okay, I would start with power.

I would load test the battery to be sufficient power is available for the systems to function correctly. Low voltage causes so many issues. Make sure the battery cables are clean and tight.

https://www.2carpros.com/articles/car-battery-load-test

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

Also, check the charging system. Yes, a bad alternator could cause this but needs to be confirmed.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Roy
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Thursday, August 20th, 2020 AT 3:31 AM

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