Hard to start & Stalling

BEGETA50

MEMBER
TOYOTA 4RUNNER

I have 1986 Toyota 4runner. This truck has been with me for the last eighteen years. This truck only has 135,000 original miles. I have never had a mayor problem with the truck, but recently it has been stalling when I am driving, and some times it will not start. It will crank the engine and it will take a one or three minutes to start.
I have replace the coil ignition, distributor, rotor, cables, spark plugs. The truck still stalling and hard to start again. Can someone please give me some help to fix it.

4 Replies

JESSE777

MEMBER
37 POSTS

The first thing you need to do is determine if you are losing spark during the stall/ no-start period, preferably using a spark tester.

Reply with results.

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Monday, December 18th, 2006 AT 12:09 PM

LOSONE

MECHANIC
1,616 POSTS

I need to know the engine size and number. It sounds like you may be getting some slack in you timing chain as was common with older yodas. When it starts do you here an engine noise for a few seconds until the oil pressure builds?

I also need to know if it is carburated or fuel injected.

Let me know
losone

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Monday, December 18th, 2006 AT 1:04 PM

BEGETA50

MEMBER
2 POSTS

The engine is 22R with fuel injections. The engine does not make any noice.
I have notice that if I do not push the gas pedal twice before to start. The car will not run. It will only cranck and crank, and when that happens I have to wait for a minute then wigle the key and then I try again and then the car runs.
I also notice that when the cars stall it makes a click sound on the computer side then goes off.

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Monday, December 18th, 2006 AT 11:34 PM

LOSONE

MECHANIC
1,616 POSTS

Sounds like you have a fuel problem. 1st action is to replace the fuel filter and have the fuel pressure checked. It is very abnormal to pump the gas pedal with fuel injection as it does nothing except open the throtle as there is no gas to spray.

You more than likely have a bad fuel pump and or pressure regulator. Hopefully the fuel filter will help. Make sure you check the vacuum hose to the fuel pressure regulator which is located on the fuel rail.

Toyota fuel injectors have a micro filter in the tip. I have seen the screens clogged and pass only a limited amount of fuel, giving you the sympton you have.

Let me know

losone

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Tuesday, December 19th, 2006 AT 7:54 AM