Toyota 7FGU25:
No start after sitting overnight

Call to customer for not starting in the morning at shift start. Of course, while there, it started fine and ran great. Owner says they would have to remove fuel line from tank and release pressure by pushing plunger in the coupling against the truck. Then put it back on and unit would start fine. Regulator has been replaced twice, recently (less than 3 months). Only stayed a half hour to load test battery at his request and check for any obvious damage and or loose wiring. Any suggestions?
  • Posted 3 Mar 2010 08:56
  • Discussion started by tonymfg
  • New Jersey, United States
Showing items 1 - 7 of 7 results.
Hello there! I have ran across that problem. First i would check for battery voltage at the lp solenoid in the morning if not present, i would check the lp solenoid relay under the fuse box.If voltage is present i would remove lp solenoid from lp regulator (disconnect lp hose and crack line to remove pressure from system) i would check the spring and plunger for lp residue that would cause it to stick and not to open. If clean put spring and plunger back into solenoid, connect and hold away from fan (moving parts ect.) turn engine over and watch to see solenoid pulls spring and plunger in. if it doesnt replace lp solenoid. If solenoid works reinstall connect lp hose to tank. remove lp hose from lp regulator put finger over the port turn over engine and feel for lp fuel. no output means time for new or rebuilt lp regulator. hope this helps.
  • Posted 25 Jan 2013 13:16
  • Reply by fixnproblems
  • Texas, United States
I had the same problem. The truck in question had the Asian LPG system installed. It was suggested to me on this site to replace the hose between the regulator & the mixer & to replace the battery. I did both those things & haven't had a complaint since.
  • Posted 25 Jan 2013 10:48
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
Did you ever find out what was causing the no start after sitting problem? I am having the same problem, cranks for a very long time then will finally start. After start it runs perfect and starts without even touching pedal.
  • Posted 24 Jan 2013 21:59
  • Reply by tdarr
  • Florida, United States
I have the same problem with two of my forklifts.I am not familiar with LPG could someone help me on this.The serial #on one of the forklifts is78002 model 7fgu25
  • Posted 15 Jan 2011 05:09
  • Reply by eddie1
  • New Mexico, United States
What I've seen with hard start in the morning is a converter full of tar. If it has a drain plug, get the unit hot and then shut off, drain tar, and repeat.

Rick, I need some "off-the-radar" Toyota diagnostic help....[email address removed]
  • Posted 28 May 2010 00:32
  • Reply by CSCFR
  • California, United States
sorry 'bout that rick. #61428. libradue_925atyahoodotcom
  • Posted 3 Mar 2010 10:05
  • Reply by tonymfg
  • New Jersey, United States
got to have a serial number to help you. i can see what system your truck should have. also post your e so some one can help you off the radar.
  • Posted 3 Mar 2010 09:51
  • Modified 3 Mar 2010 09:57 by poster
  • Reply by rick_c
  • Texas, United States
technology: (no user serviceable parts inside)

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