is the tank vented on 94 4 runner

Asked by Oct 26, 2014 at 10:35 PM about the 1994 Toyota 4Runner 4 Dr SR5 V6 4WD SUV

Question type: Maintenance & Repair

hard starting in the am    but after first start it is fine all day  then again  in the am almost
2 min cranking

2 Answers

102,115

You could have a couple of problems going on, first check the codes, it might give you a place to start, if no codes then check the cold start injector and the sensor, as these seem to cause the biggest problem, next test your fuel pressure and flow, if it reading is low test for full battery voltage at the fuel pump before replacing the pump, then there is the vane air flow assembly, sometimes the door gets cruddy and won't open quite far enough to turn on the fuel pump while cranking, If you haven't found your trouble by now then it could be an ohms problem in the fuel injection circuit, maybe bad injectors, but ohm them first. Of course there is always the possibility of bad wiring in a rig this old, so look around under the hood.

1 of 1 people found this helpful.
70,965

Try this, turn the ignition on but don't try to start it. Count to 5. Turn the ignition off. Repeat. Now try to start it. If it starts right up the fuel system is losing pressure. This can be a bad check valve (if equipped) or a dying fuel pump. HTH. -Jim

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