Engine shutting off during long trips.
- Thread starter 1meancruiser
- Start date
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Count me in the camp that believes fuel pumps either work or they don’t. Check your fuel filter or look for blockage.
Oftentimes heat and or altitude will exacerbate the problem.
Oftentimes heat and or altitude will exacerbate the problem.
- Thread starter
- #223
at 1/2 tank and 70 degree temps, it may just be the pump and yes, definitely cover those fuel lines near the cats!
This problem is very common in the 06 and 07 models (VVTi) when they changed the fuel pump compared to the earlier models. I have gone through almost all possible ways to resolve this when this happened on my 06.
this is my fair share of my experience dealing and solving this problem.
Here’s the side by side comparison of the two fuel pumps:
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View attachment 2045385
this is my fair share of my experience dealing and solving this problem.
Here’s the side by side comparison of the two fuel pumps:
View attachment 2045381
View attachment 2045383
View attachment 2045385
- Thread starter
- #225
i believe the fule pumps toyota sells today are the upgraded. My mechanic, when installing the fuel pump, told me it was an upgraded part number and the old one was not available.
so what part # FP is the upgraded one?
- Thread starter
- #227
I'd have to look through this thread, i posted it a number of years ago, both the old and new part numbers for the fuel pump. But my mechanic told me there was only one pump available from the factory, and it was a replacement part to the old pump, so i don't think you can buy the old one...
2001LC
SILVER Star
I checked, and see only one PN #. It is possible a change was made, without change in PN#
23220-50160 PUMP ASSY, FUEL W/FILTER 05-2005-08-2007
Partsouq $324.
$264 at Fuel Pump - Toyota (23220-50160) | Toyota Parts
23220-50160 PUMP ASSY, FUEL W/FILTER 05-2005-08-2007
Partsouq $324.
$264 at Fuel Pump - Toyota (23220-50160) | Toyota Parts
Pskhaat
Tourer
Depending on altitude, 85 is likely your best bet. With lower oxygen partial pressures, a lower octane performs better.
Vapor locking at altitude (regardless of how "impossible" it is supposed to be) is anecdotally exasperated by higher test fuels.
Pskhaat
Tourer
Didn't someone mention a world market larger fuel pump?
the one in the 06 and 07 LC and LX (correct me if i'm wrong) is a two-speed type of fuel pump. the fuel pump on these models crank up or slow down depending on the temperature/pressure on a given circumstance.
- Thread starter
- #232
you may be right, frankly i'm not sure...
I'm a believer... Last summer I stopped at the Bear Creek Falls overlook between Ouray and Silverton and the truck wouldn't restart. After letting it sit with the hood up for about 30 minutes, it finally fired. It hasn't had a problem since.
We started the day in Grand Junction so we were on the road a few hours and the truck was hot. The fuel pump had been replaced a few months earlier with a Toyota OEM replacement, but am still running the original charcoal canister.
Said truck, caught while behaving badly:
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- Thread starter
- #234
Have you had the fuel tank vent replaced. the fuel tank needs to be removed from the vehicle as the vent sits on top, I believe that is the root cause causing the charcoal filter to become submerged in fuel from higher fuel temperatures.
No, but I'll keep it in mind when I get around to swapping out the cannister, thanks.
Another data point--on trip from Los Angeles to Houston last week. Filled up with 91 (my usual drink of choice) in Palm Desert, California. Smooth freeway driving till I get into Phoenix, where I hit traffic. It's blazing hot (111F indicated), and I have roughly a third of a tank of fuel. Coasting down to a traffic jam by PHX airport, I notice throttle is no longer responding. I had enough momentum to shift into N (engine stalled at this point, lost power steering), and pull onto the shoulder.
No smell of gasoline, or any abnormal noises. Gas cap opened without hissing or anything. Waited for about half hour before it would run again. My next planned stop was the Costco in Tempe for fuel, so I hit the road again, and the car stalls while I'm on the offramp, in the turn lane.... Sat with hazards on hoping not to get run into.
The first time I had this issue was wheeling in the mountains, after stopping to take some scenic photos, and that time I definitely smelled gas and heard gurgles. The second time was also while wheeling, idle coasting down a trail full of snow after a climb. Don't remember if the gas cap hissed or smelled.
This time was the third confirmed time, but no smell or pressure release at gas cap. Also had my wife with me, who was ready to put her foot down and turn us around. Sitting on the side of the freeway in late afternoon heat was not fun.
After that, every time we stopped for fuel, I let the car sit with cap open while we took a break. My brother (same car) suggested I drive with the cap not tightened all the way, so I did. Don't know if that helped or not, but no further issues. No CEL or pending codes either (in the past I got misfires and catalyst efficiency low, from crank and hold, and trying to run the engine with throttle).
The gas cap gasket was changed about 109k, car is currently at 206k. I'm concerned about the return drive, especially during the hot and high portions of NM and AZ, and dreading the city traffic that is PHX.
PSKHAAT says it's made worse by higher octane fuel, which is interesting observation, so I may run the lowest available octane for the trip (not towing, stock everything, and drive like a grandpa I'm told).
Definitely when I get back, going to have some heat shielding put in between the cat and the fuel line, and if possible some insulation around the gas line as well. It was the plan this summer, but had something come up where I had to drive to Houston on short notice.
No smell of gasoline, or any abnormal noises. Gas cap opened without hissing or anything. Waited for about half hour before it would run again. My next planned stop was the Costco in Tempe for fuel, so I hit the road again, and the car stalls while I'm on the offramp, in the turn lane.... Sat with hazards on hoping not to get run into.
The first time I had this issue was wheeling in the mountains, after stopping to take some scenic photos, and that time I definitely smelled gas and heard gurgles. The second time was also while wheeling, idle coasting down a trail full of snow after a climb. Don't remember if the gas cap hissed or smelled.
This time was the third confirmed time, but no smell or pressure release at gas cap. Also had my wife with me, who was ready to put her foot down and turn us around. Sitting on the side of the freeway in late afternoon heat was not fun.
After that, every time we stopped for fuel, I let the car sit with cap open while we took a break. My brother (same car) suggested I drive with the cap not tightened all the way, so I did. Don't know if that helped or not, but no further issues. No CEL or pending codes either (in the past I got misfires and catalyst efficiency low, from crank and hold, and trying to run the engine with throttle).
The gas cap gasket was changed about 109k, car is currently at 206k. I'm concerned about the return drive, especially during the hot and high portions of NM and AZ, and dreading the city traffic that is PHX.
PSKHAAT says it's made worse by higher octane fuel, which is interesting observation, so I may run the lowest available octane for the trip (not towing, stock everything, and drive like a grandpa I'm told).
Definitely when I get back, going to have some heat shielding put in between the cat and the fuel line, and if possible some insulation around the gas line as well. It was the plan this summer, but had something come up where I had to drive to Houston on short notice.
Pskhaat
Tourer
Tell me more, where would this be?
Pskhaat
Tourer
Ugh, I just replaced an otherwise perfectly fine fuel pump a couple weeks back. I keep hoping this is the root cause, maybe it won't be.
Well, at least it's one less thing you've got to worry about. I haven't had an issue since that stop outside of Ouray last summer and, because there wasn't pressure in the gas tank, I really think it was a fuel boiling/vapor lock issue. I may try to insulate the lines near the cat before the next trip.
- Thread starter
- #240
My Suggestion, if you need a quick fix...wrap the fuel lines running on the outside of the catalytic converter, on the drive side with foil or somthing to act as a heat insulator to the fuel lines. The heat from the cat heats up the fuel going in and coming back into the fuel tank and at some point causes the fuel in the tank to boil over, or at least to cause venting issues. This is a temporary fix, until you can make a permanent heat shield, again between the catalytic convertor and the fuel lines. I had this issue continuously for couple years, I started this thread, and it was resolved when I install heat shield. I had a very mild version of this happen once after I install the heat shield, just recently when I was offroading. We drove from 4000 feet elevation to 10,000 feet elevation on a full tank of gas in the mid 70s heat. When I arrived at my destination, and turned off the car off, the car would not immediately restart. I opened the gas tank and let it sit for two minutes, close the gas tank and it restarted. I am going to get a heat mat and wrap the fuel lines all the way through, even if they are not that close with with the exhaust. Furthermore, you're gonna want to replace your fuel tank vent and charcoal Evap canister.
