What is an SST?

[CajunKenny]

Ok. Dumb question of the day!

My car has been sitting for approximately 2-1/2 years. The only work that I did was replace the rod bearings. The engine did not come out of the car. I got it all back together and drained the old gas out of the tank and yes, put fresh gas in. Approximately 5 Gallons.

It won't start and there is no fuel pressure. I am thinking I've got a dead fuel pump. I referred to the TSRM and see that there is a check to perform using an SST.

What is an SST...a jumper wire with a resistor? Do I need an SST or will something else work?

 

[Big Wang Bandit]

Special Service tool

 

[Burntz]

just listen for the fuel pump when you turn the key on. if you cant hear it, you should probably replace it

 

[shaeff]

use a heavy gauge wire to jump +B and FP in the diagnostic box. (listen near the filler neck for a whirring sound) that will run the fuel pump. if it doesn't run, check the relay, resistor, and check for power at the pump through the access panel in the hatch.

 

[CajunKenny]

When I tun the key, I hear a slight click followed by two clicks from the passenger side by the tire under the hood. The two latter clicks are louder than the first one and sound like relays to me. The hood is off so it's easy to hear.

Ok. I'll try using a jumper wire and post what I hear.

 

[WhtMa71]

Super Secret Tool..Only 'yota dealerships know about them.

 

[Dan_Gyoba]

LOL! Nice definition.

Most SSTs can be substituted, some with (As you surmise) a piece of wire, though I'm partial to paper clips myself. Others take a bit more work, or the destruction of an otherwise general purpose tool so that it can never be used for anything else ever again.

Fuel pumps don't seem to like sitting. This is somewhat natural, since they can't be lubricated with grease or oil, and gasoline makes a crappy lubricant. As such they kind of tend to freeze up if left for too long. Chances are a lot greater that the fuel pump failed for this reason than a relay or the wiring. (However, when sitting it HAS been known to happen that some rodent comes along and sharpens its teeth on your wire harness, so this should be checked.)

The access panel in the hatch is where the fuel sender unit goes in, not the fuel pump. (4 wire connector, 2 for fuel level, and 2 for the little orange "Go get fuel NOW" light.)

In order to check the fuel pump, you need to get under the car. To check it at the tank, you need to drop the tank. Once you're that far, if the car's been sitting, replace the pump anyway. While you're at it, you might as well buy the Walbro 255lph fuel pump since it's reasonably inexpensive, and adequate to the task of supplying fuel for much more than stock power.

 

[CajunKenny]

Ok. I missed plugging in the Igniter. Got that done, now a new problem.

When I turn the key, it spits a little bit. The engine sounds like it's backfireing or something. When this happens, my boost gauge hits 15psi.

Any ideas?

Edit: I cracked the FPR fitting and fuel shoots out when I use the jumper!

 

[Dan_Gyoba]

How's your cam and ignition timing? If you're misfiring, it'll cause all kinds of issues.

Your boost gauge pegging means that it's pressurising the intake manifold when it "spits" -- A sure sign of a backfire.

 

[CajunKenny]

How's your cam and ignition timing? If you're misfiring, it'll cause all kinds of issues.

Your boost gauge pegging means that it's pressurising the intake manifold when it "spits" -- A sure sign of a backfire.

Yeah; but, I didn't mess with anything timing wise at all.

I didn't pull any plug wires, mess with the distributor, or anything.

 

[jetjock]

just listen for the fuel pump when you turn the key on. if you cant hear it, you should probably replace it

The fuel pump in these cars doesn't come on with the key.

Btw you guys sure like doing things the hard way. The fuel pump's health can be checked without getting your hands dirty or even bending down. All it takes is a pressure gage, a 1 liter container, and a meter. Better yet is a scope with a current probe. That way you'd know the pump's rpm and the condition of it's bearings, brushes, and commutator.

 

[CajunKenny]

The fuel pump in these cars doesn't come on with the key.

Btw you guys sure like doing things the hard way. The fuel pump's health can be checked without getting your hands dirty or even bending down. All it takes is a pressure gage, a 1 liter container, and a meter. Better yet is a scope with a current probe. That way you'd know the pump's rpm and the condition of it's bearings, brushes, and commutator.

Any idea as to why I would now be backfiring?

 

[shaeff]

though I'm partial to paper clips myself.

trust me, you're not going to want to use a paper clip to jump the fuel pump. you need thick wire that's well insulated. otherwise you're looking at two nice burn marks on your fingers when you grab the paperclip.

 

[CajunKenny]

I used a piece of insulated wire. No burn marks!! :biglaugh:

 

[jetjock]

Any idea as to why I would now be backfiring?

Check ignition and valve timing. Valve timing first. Doesn't matter you didn't mess with them. What kind of diagnostic technique is that?

 

[CajunKenny]

Check ignition and valve timing. Valve timing first. Doesn't matter you didn't mess with them. What kind of diagnostic technique is that?

Well, I figured since I didn't mess with it, it should be fine.

How do I check those?

 

[Clip]

good luck solving the problem and nice avatar

 

[TurboFreak]

Haha I always thought the Special Service Tool was one universal tool that you could buy from toyota...

 

[CajunKenny]

good luck solving the problem and nice avatar

Thanks!

Yeah, I guess great minds think alike. And like the same Avatars!!! :biglaugh:

 

[djordan97]

solved problem with kenny last night. was a fouled out spark plug.