G37 runs hot at idle but cools once moving

Log the conditions before you spend. Write temp, speed, and in-gear vs coast when the 2013 Infiniti G37 does it — then decide on parts. That's the branch I'd chase this week. On “g37 runs hot at idle but cools,” that was the fork that mattered for me. Not gospel, but it saved me a headache. No warning lights, which is why I'm documenting it.

Start with the test that can prove you wrong. Two 2013 Infiniti G37s can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. Parts cannon is a personality type I try to avoid. Your commute and mine probably aren't the same, but the test still applies. Video is ugly but it shows the hesitation.

Log the conditions before you spend. Get a real battery/charging test on the 2013 Infiniti G37, not just resting voltage, before blaming a module. That's the branch I'd chase this week. On “g37 runs hot at idle but cools,” that was the fork that mattered for me. This is from a 2013 Infiniti G37 in Houston with 37,000 miles. Time, temperature, and whether it's in gear are the notes that actually help a shop. If your situation is the opposite, ignore me. Happens in gear, not in park, for what that's worth.

It did g37 runs hot at idle but cools twice this week, both times after sitting. No change in mileage feel. Heat soak after errands is the other window.

Start with the test that can prove you wrong. Two 2013 Infiniti G37s can feel identical and have different causes, so measure before you copy someone else's repair. Don't erase codes until someone who can help has seen them. Take it or leave it — that's what I'd do. Wrote this up on my lunch break.

Intermittent stuff lies if you only catch it once. A pressure test beats staring at a dry driveway if the 2013 Infiniti G37 is losing coolant with no puddle. Don't erase codes until someone who can help has seen them. On “g37 runs hot at idle but cools,” that was the fork that mattered for me. I'd want a dollar figure or a measured spec, not 'should be fine.' If this is nothing, great. I want that in data.

If it were in my driveway, if a shop can't duplicate it on the 2013 Infiniti G37, bring a video plus freeze-frame data, not just a story. Don't erase codes until someone who can help has seen them. Learned this the expensive way on a previous car. I'll poke at it this weekend.

I wouldn't throw parts yet. Write temp, speed, and in-gear vs coast when the 2013 Infiniti G37 does it — then decide on parts. You'll know quickly if you're on the wrong tree. This is from a 2013 Infiniti G37 in Houston with 37,000 miles. Post the numbers (or the code) and people can get more specific. Not interested in a five-hour wait for a shrug.

It did g37 runs hot at idle but cools twice this week, both times after sitting. No change in mileage feel. I'd rather pay for diagnosis than a second guess-repair.