Can you buy they parts at Napa or Autozone or are they are Toyota only part?
I have a 1996 tacoma,yes hard start when hot,Being an auto tech. it is a problem worth solvingā¦embarassing to say the least.
I had checked fuel pressure and power to the pump,all checked good,checked for ignition fire yes has spark,ā¦WHAT i discovered using my snapon scanner,lab scope,ISā¦the crank sensor and cam sensor are both in the distributer,the crank signal is good ,but the cam sensor signal is not within spec,therefore the computer can not identify where cyl#1 is thus guessing and the cause of many no starts or hard starts
I replaced the ditribter with a new toyota version(400.00) and it solved the problem for a year,now it is back with the same condition,and i lack (400) to give away again,ā¦SO now i just carry around a gallon jug of water and pour half of it over the base of the distribter(alumnium part)and she cranks easily.I thought perhaps of rigging some sot of sprayer so i wouldnāt have to get out of the truck but OH wellā¦maybe later,as now i have 318,000 miles on her and she really drives like she did new,i canāt get rid of herā¦goodluck Wooody
I tried changing out the coolant temp sensor (which was a bear and half to get done since it sits 1/2" from the firewall on the back of head buried under the wiring harness) and the problem still occurs. Seems the only way I can get it to start when it acts up is to crank until the engine bucks around, then key off. Wait 10 seconds then turn key direct from off to start and it will usually start. Very annoying problem.
Iām having the same problem with a 96 T100 4 cylinder. I before reading this post I had to wait 15-20 minutes with the hood up any time the temperature got above 80 degrees and the engine was warm. Unplugging the air charge temperature sensor (which is good: tested the resistance and its fine ) works every time and the truck fires instantaneously, however, I too would like to find a legitimate fix. If anyone figures it out please post here.
The air charge temperature sensor is located in the air filter box and is what people are calling the air filter barometric pressure sensor below. Please let me know if anyone finds a permanent fix
Hey i realize these are pretty old posts but on the chance that yall are still trying to fix this issue listen up , i have been studying the factory service manual to solve this issue on my 96 tacoma and my neighbors 96 tacoma , both are the 2.4l , what i found is its evap related , the check valves in the vapor canister failed and its dumping too much fuel vapor into the intake from the fuel tank on start up ,
There are 2 tests you can try to confirm this ,
#1 . Loosen your gas cap before you try to start up , if you get a whoosh of pressure , and then the truck starts , this is a sign of an issue with your vapor canister ,
#2 .you can also take the rubber hose off your intake that comes from the purge side of the canister , you will find the canister in the drivers side fenderwell under the hood , 2 hoses on top , there will be a hose going to a metal pipe thats bolted to the firewall then that connects to another hose that dumps fuel vapor into the intake to burn it off on startup , remove this hose from the metal pipe and block off the pipe going to the intake with a small length of hose with a bolt stuck in it , crank the truck up and see if it still hot starts , the results will surprise you , , running it this way long term will throw a trouble code because it isnt detecting vapor on startup but you will at least know what your issue is.
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I have the same issue in my 1996 Tacoma 2.4L for a while now and have went through the entire system except the EVAP side of the fuel system. I will try this when I get back home and let you know how it goes. Thanks for the post I hope this solves the problem.
Thanks!
Depending on the evap system configuration, you might be able to just clamp off the purge hose with a hemostat clamp as a temporary test, rather than having to remove and plug any lines.