New to the site found a lot of helpful info on here but have my own problem now and hoping to find some help. Today I went on a two hr road trip and when I arrived we stopped and got something to eat. When I started the car to leave it was idling rough then put it in reverse and it stalled then check gas cap came up. This has happened three times now but has never stalled. I have an 03 v8 with 78000 and I had the coils and valve covers replaced last month at the dealer. Any input would b appreciated thanks in advanced.
Stalle out today
- Thread starter SMOOGER
- Start date
Sounds like you need to re-seat the gas cap or get a new one. Fuel injection requires a pressurized fuel system and a non or improperly seated gas cap won't allow the system to pressurize.
I would think so. The cap is probably on almost tight when it needs to be for sure tight. That is the easiest so start there first. The cap should spin clockwise and click as you spin it. A lot like the way the degas bottle cap clicks after it's seated.
Shredicus
Dedicated LVC Member
Probably going to need a full engine swap and transmission replacement... that's the only reason I could think of that a car would tell you to check the gas cap...
or maybe its just a gas cap. :shifty:
or maybe its just a gas cap. :shifty:
Pan1019
Active LVC Member
Ahahaha. +1. Made my day.
joegr
Dedicated LVC Member
Sorry, no.
The fuel injection does not pressurize the gas tank. In fact, the tank is generally kept at a slight vacuum. The only reason for that is to capture the gasoline fumes and to be able to detect any air leaks in the fuel tank.
Probably, the stalling and the gas cap message are related, but they might not be. The gas cap message just means that the PCM has detected a slight air leak in the vapor recovery system. It may be there is a malfunction of the vapor recovery canister system and it is sucking liquid gasoline into the engine instead of vapor. If so, that could flood the engine and stall it. I would only expect this to happen with a full gas tank. It is a common issue on some makes, but I haven't heard of it happening to Ford much.
Thank you for the clarification! I thought I read this somewhere. As I think about it, would a return-type system require pressurization?
joegr
Dedicated LVC Member
No, it wouldn't either. (The LS fuel setup is a non-return type. - for anyone else following this.)
AFAIK, gas tanks are sealed (controlled vent really) systems for only two reasons.
1. To save gasoline (keep it for evaporating away as quickly)
2. To control hazardous vapors
I believe that the Prius actually has a bladder inside the gas tank that the gasoline goes in. This is to reduce the amount lost to evaporation even more. I don't know if the air around the bladder is pressurized or not.
jmtiseo
The Peanut Gallery
You know what I mean. I remember looking it up when I had a failsaife mode and a code for the throttle body, screw that replaced a cop and all is well. From the sound of it, getting coils done at a dealer, he has a couple bones to throw at it. I was curious before doing mine last weekend. they quoted 3 hours labor at a shop, over $200 in labor alone to just swap plugs and coils. :blah:
I know..... I was messing with you......