Wónt start while hot.
#1
Wónt start while hot.
Hello guys, first of all, I,m not an English native speaker, so excuse my grammar... In second place I´m worried with a mysterious problem:
I own a 2000 4Runner Limited, 3.4 and v6 engine, (MOTOR: 5VZ-FE), having around 80.000 miles. Cold starting is fine, but after running a while, if I stop the engine for a short period of time (i.e. to buy a newspaper, or pick-up kid from school), it will start but like it has no fuel pressure, the engine runs at low rpm and stall after 2-3 seconds... It will start again but like starving of fuel for a while, then the revs go normal, the engine runs smooth and with normal power. This happens whenever I take short stops... worsens after refueling (¿some issue with fuel tank pressure?). It never happens after a long stop, and cold starting is fine.
I,ve checked fuel pump pressure, fuel filter, replaced air filter and spark plugs, but no results so far...
Any suggestions??
Sergio Ramos, CHILE.
#2
Contributing Member
Yes, a few others have had this same problem. I forget the name of the instrument that needs to be cleaned, but, its the green plastic peice underneath the throttle body.
#5
Contributing Member
Yes, could be a few things, but I would definately clean the IAC valve for starters.
https://www.yotatech.com/forums/f123/re-3-4l-v6-hard-start-hot-cleaned-iac-pics-92286/
https://www.yotatech.com/forums/f123/re-3-4l-v6-hard-start-hot-cleaned-iac-pics-92286/
#7
I just finished cleaning the IAC valve. It was very dirty. It seems that the problem is gone, hot starting is good, and RPM´s are steady... Tomorrow I´m having a more extensive "road-test".
Thanks a lot for the help.....
Sergio
Thanks a lot for the help.....
Sergio
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