Slow Start

[blkexp98]

I am having some issues with my 4runner and wanted to see if any of you ran into the same symptoms. Before I start I did do a search and ignition coils and fuel pump seem to be the common culprit.

A few days ago a slow start started happening. I changed my battery maybe a year ago so I figured it was fine. The volt meter said the same. Charging also seems good. So then I started thinking starter but today it just turned over maybe 6 times before starting. So that's leading me away from the starter. If I stop the car for a few minutes and restart it the car seems to work normally. Overnight is when I have the worst issues. After work it still starts slow but is faster than the morning. That's why I initially looked at the battery.

So what do you think could be causing this issue and is there a good way to test it before buying a new part?

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[Fusious]

It honestly could still be your starter. I had it happen in my 240sx before and eventually it just wouldn't turn over unless I hit it with a stick. It seemed like my battery the entire time because it was starting as if my battery was going bad. It also would start perfectly fine at times before it really went out.

You could always try hooking up a volt meter and a jumper wire (becareful not to touch anything with the ends of your wires other than battery and starter connector!!!!) And look up the proper numbers your starter should be putting out. I would also look up how to do this so you don't fry anything from mixing grounds and power if you are unsure of how to go about this.

 

[Bossman]

Here is a thread that points to the fuel delivery system as a potential source of the problem.

http://www.toyota-4runner.org/probl...rt-hesitation-ignition-problem-any-ideas.html

If it is not the battery or starter, then it could be just a bad tank of gas, or possibly the fuel pump.

 

[Phils4th]

If there isn't any codes lets see what our fuel pressure is like. There are a couple ways to do this. Hook up a fuel pressure gauge to monitor what is happening on a cold, warm, and hot engine. You could also try, on the engine after sitting overnight, to spray some starting fluid onto the throttle body, hook the intake back up, and immediately try and start it. If it starts right up I'd say you'll be hooking up a fuel gauge to figure out where fuel pressure is bleeding down in the system. You could also try to turn the key to the "on" position and hold for a couple seconds before starting. This should prime the fuel system. You could also turn the key on and off multiple times because the pump will only run a second or two before turning off until you start. This will ensure the system is primed. Let's try and rule out a fuel pressure regulator or a fuel pump after you try any of those techniques.

You may also be able to rent a fuel pressure gauge from auto store.