I have a 2007 Camry with the 2.4L 4-cyl. It started “acting weird” a couple of nights ago. It stuttered then acted fine. By stuttering I mean that it felt like it lost power for just a second. Then it…

WalshFX

I have a 2007 Camry with the 2.4L 4-cyl. It started “acting weird” a couple of nights ago. It stuttered then acted fine. By stuttering I mean that it felt like it lost power for just a second. Then it happened again a little later.

Then again, but for a longer time. When this happens the dash goes dark but some lights are still lit. For example, the R for reverse flashes on and off.

It seems to be related to a couple of things:
Sometimes when I hit a hard bump
Sometimes when I’m in the highway and RPMs drop below 3200
When the dash backlights go out, I lose engine power, the heater/AC fan cuts out, radio cuts out.

After it does that a couple of times, I get a P0335 code for crankshaft sensor.

I’m wondering what could cause this. Could it possibly be ignition switch? Or could it be the crankshaft sensor? Or something else?

Also, trying to find any loose connections, I had started it up and then it stalled. Hear relay clicking from the fuse/relay box. It’s in sync with the flickering on the dash.

Here’s a new wrinkle... when I turn the Heater/AC blower off. The clicking stops and everything returns to normal. If it's idling fine and I turn the blower on, it dies and/or starts the flickering/clicking again.

Comments (3)
No. 1-3
WalshFX
WalshFX

I was able to finally narrow it down to a bad ground. I had obtained electric diagrams and gone through all of the ground connections that I could find. It was still acting up so I decided to replace the crankshaft sensor because that was the code that was being thrown. When I went to disconnect the battery, I saw one more ground wire that I hadn't checked. Followed it to a very rusty and corroded connection. I cleaned it up, put dielectric grease on it, put it back together with a new screw. No more issues since.

I sure appreciate the suggestions above.

Celticbrother
Celticbrother

Electrical gremilins, something is unplugged, battery is going bad, alternator going bad, corroded wires, blown fuses, fusible links, might be time to get it scanned to pinpoint your issue.

Jackofall
Jackofall

May be blower going bad. There is a relay. Also check all grounds under hood, negative post not motor.