Engine shut off at a stop light...
#1
«ΩLi√∑RX8™...
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![Exclamation](https://www.rx8club.com/images/icons/icon4.gif)
I was driving my RX8 and decided to turn on the AC cuz it was kinda hot out about a week ago. Had it on for about 2 mins. when i came to a stop light and was waiting for the green light, i felt my car vibrate a lot like usual when the ac or heat is on, when all of a sudden it completely shut off on me. I immediately turned the AC off cuz i knew it was that causing it to shut off, I tried to restart it again, but no luck until the third time around, it started. Then the rest of that day and until now its still running like nothing happened, its doing good like always, no problems. I had it checked out by one of my rotary mechanics and everythings running good. Has anyone had an issue like that, or might have an idea of what it is???
#2
Hermitage Holdout
I was driving my RX8 and decided to turn on the AC cuz it was kinda hot out about a week ago. Had it on for about 2 mins. when i came to a stop light and was waiting for the green light, i felt my car vibrate a lot like usual when the ac or heat is on, when all of a sudden it completely shut off on me. I immediately turned the AC off cuz i knew it was that causing it to shut off, I tried to restart it again, but no luck until the third time around, it started. Then the rest of that day and until now its still running like nothing happened, its doing good like always, no problems. I had it checked out by one of my rotary mechanics and everythings running good. Has anyone had an issue like that, or might have an idea of what it is???
#4
«ΩLi√∑RX8™...
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You getting any noise from the AC compressor when you pop the hood and listen for a while (screech, grind, rumble, etc)? If the bearings or magnetic clutch are going it could cause the compressor to bind up which in turn puts more drag on the motor. If engine torque at idle isn't enough to overcome the drag from the compressor via the belt drive between the two then the engine will stall.
#5
«ΩLi√∑RX8™...
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honestly, on december i told mazda if they could check them and they said they were still good, how long are they good for? but im gonna look into it...the car is running at its best right now and starting great, so idont think its that. but what the hell do i know..??? lol...thanks for the info thou. ill check them out anyways...
#6
«ΩLi√∑RX8™...
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oh and another thing guys, while im here, the engine coolant light comes on everytime im on the highway and whenever its hot outside, its strange thou, i refilled it, and its always on the level its supposed to be, but the light still comes on, and its only on for like 20seconds and then it goes away then again comes on n then goes away right away. and its only on the highway. yesterday it came on again, so im gonna check it again right now.
#11
Not Faster Thn Ryans Spd3
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no prob man, I know how you feel when I got my car it was doing the same thing and I started freaking out lol, its just the sensor putting a little extra in the overflow tank may make it stop for a while.
#13
Reviving an old thread.
I just had the exact same thing happen to me today on the way home. Was on the highway with the AC on (approx 60mph, 84F, 18 miles, pretty steady speed) when I came to a stop at a traffic light, the car stalled. I turned off all accessories (fan, AC, lights) and the car started back up. I held the revs at 2k until I got my green light and continued home. A couple more turns and I was home (1 mile maybe). In my garage I let it idle for a while, and it seemed fine. Turned on the AC and still seemed fine. I only tested it for a couple of minutes thou.
The car is an 04, 46k miles, all regular maintenance and up to date flash, K&N filter (been in there for 2 years, cleaned annually, most recently 1month ago). No CEL lights or other warnings. I had a question about ignition coil measurements, but didn't get any additional info. I think mine are testing poorly, but the car was running well till this happened. I ordered a new set, but they probably won't be here till next week.
OL!z RX8 - Did you ever find out what the cause of your issue was?
I just had the exact same thing happen to me today on the way home. Was on the highway with the AC on (approx 60mph, 84F, 18 miles, pretty steady speed) when I came to a stop at a traffic light, the car stalled. I turned off all accessories (fan, AC, lights) and the car started back up. I held the revs at 2k until I got my green light and continued home. A couple more turns and I was home (1 mile maybe). In my garage I let it idle for a while, and it seemed fine. Turned on the AC and still seemed fine. I only tested it for a couple of minutes thou.
The car is an 04, 46k miles, all regular maintenance and up to date flash, K&N filter (been in there for 2 years, cleaned annually, most recently 1month ago). No CEL lights or other warnings. I had a question about ignition coil measurements, but didn't get any additional info. I think mine are testing poorly, but the car was running well till this happened. I ordered a new set, but they probably won't be here till next week.
OL!z RX8 - Did you ever find out what the cause of your issue was?
#15
Well, it doesn't look like it was my ignition coils...
https://www.rx8club.com/series-i-trouble-shooting-95/ignition-coil-readings-197801/
Battery connections seem fine too.
https://www.rx8club.com/series-i-trouble-shooting-95/ignition-coil-readings-197801/
Battery connections seem fine too.
#17
The same thing just happen to me. I was on the high way there was traffic and I turn the AC on and my car turn off. I got a compression test about 4 months ago and it was perfectly fine. Any idea was going ??
#18
Registered
Same thing happened here and I changed my spark plugs, wires, and coils and thought I had solved the problem (only happened about once a month so was hard to troubleshoot). They didn't look bad, but I figured it couldn't hurt to replace them anyways. However, turns out it was my fuel pump going bad. It always started back up for me, but definitely don't want to be on a busy highway the one time it decides not to.
#19
You gonna eat that?
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Same thing happened here and I changed my spark plugs, wires, and coils and thought I had solved the problem (only happened about once a month so was hard to troubleshoot). They didn't look bad, but I figured it couldn't hurt to replace them anyways. However, turns out it was my fuel pump going bad. It always started back up for me, but definitely don't want to be on a busy highway the one time it decides not to.
Habitually driving with less can cause the fuel pump to overheat and shorten it's life.
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