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6 runners are available for a relay race but only four can run in each race in a specific order. How many possible line-ups are there?

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Firing order for 1998 four runner

Rotation goes in a clockwise direction and the firing order is
5 6
3 4
1 2
The Number one plug is first plug on Pass side looking at the
engine # 2 is on driverside and so forth for all plugs.

Oct 13, 2016 | 1998 Toyota 4Runner

2 Answers

When you have an extremely high idle and code p2008 shows up what could the problem be

Without knowing what car you have it gets difficult to be specific, however since usually p2008 is dealing with intake manifold runner control, and you have a high idle...Id say you may possibly have a loose or broken vacuum hose to runner control...with the vacuum off the runners cant be regulated...and the air leaking in through the bad/open hose will raise idle. check vacuum hoses and runner linikage

Apr 13, 2015 | Cars & Trucks

2 Answers

2004 trailblazer coolant leaking rear

It may be from a rear heater, possible corroded line, had the problem with my suburban and my sisters 4 runner. just replaced the line.

Nov 28, 2012 | 2004 Chevrolet TrailBlazer

1 Answer

Intake manifold runner stuck open

Need to be more (way more) specific. An intake man. is a one piece, aluminum device, with "runners" going into the head where your intake valves are operating open and closed to allow the engine to run. Nothing on the intake opens or closes, or moves in any way. The big butterfly valve at the opening of the intake(part of your throttle body, where the air comes in), Is this what is stuck open? It's controlled by your accelerator linkage, and a spring to bring it closed. Spray with carb. cleaner, reach in as far as possible with a rag to clean it as much as you can, and work it back and forth to free it up, if it's stuck.

Oct 14, 2011 | 1998 Ford Windstar

1 Answer

Check engine light on..code short runner valve control malfuction


Sound like something came loose. If you cannot find it you need to take it to the dealer so they can perform these diagnostics. Should be under warranty.

The engine performance and power output is enhanced through the use of the "short runner valve" (SRV) system. The SRV system allows the intake charge air to bypass the long intake manifold runners between the intake manifold plenum and the intake manifold interface to the cylinder heads by providing a shorter runner directly between the plenum and the cylinder head interface.

The SRV position is controlled by a pneumatic/spring actuator and electronic solenoid valve. When the solenoid is not energized (the "rest" position), the SRV is held in the closed position. When the solenoid is energized the SRV is moved and held in its opened position. There is a set of enable conditions including a minimum engine coolant and ambient temperature, SRV enable, and Powertrain Coordinator load enable condition. If any of these conditions are not met, then the SRV valve is de-energized (closed).

* When Monitored: With the engine run time above a calibrated value, battery voltage greater than 10.4 volts, ECT within a specific range, and the Short Runner Valve Assembly (SRV) control active.
* Set Condition: The Powertrain Control Module (PCM) compares the circuit feedback to a calibrated closed range, between 75% & 85% Pulse Width Modulated (PWM) duty cycle, when the circuit is de-energized or to a calibrated open range, between 35% & 55% PWM duty cycle, when the circuit is energized. If the value is determined to be out of the calibrated range in either the de-energized, greater than 85% duty cycle or less than 75% duty cycle, or energized, greater than 55% duty cycle or less than 35% duty cycle, state for more than a calibrated amount of time, this DTC will set.

Possible Causes

Hope this helps (remember to rate and comment this answer).

Dec 23, 2010 | Dodge Magnum Cars & Trucks

2 Answers

What is engine blueprinting?what is needed to bring out more power to the engine? For example, could mere balancing of like let's a pulley add some power to the engine? Thanks.

Blueprinting is a very exhaustive and extensive process of rebuilding the engine. When the engine is designed, there are specifications for every dimension of every engine part. Since the parts are mass-produced, there is no way that they can be made exactly to spec, so there's a tolerance allowed on the parts (for example, the weight of a piston would be specified as X number of ounces, plus or minus 10%). Same for connecting rods, wrist pins, the inside diameter of each runner in the manifolds, weights and dimensions of valves, etc.

When an engine shop blueprints an engine, it means they build it to the exact specification for each part and clearance in the engine. They may order 50 pistons for a V6 engine, and will measure all of them for all size and weight dimensions, and won't stop until they get six that match exactly. They'll then do the same for the six rods, six wristpins, the valves, crankshaft, etc. They'll take the intake manifold and will usually bore it out (or extrude-hone it, which involves flowing a high-temperature, abrasive clay through it at high speed/pressure to polish and enlarge the volume for better airflow). Ditto that for the exhaust manifolds. They'll do a full hot-tank treatment on the block, metallax the block (alternate heating and cooling of the block to make the crystalline structure of the engine block metal more regular, and thus stronger), cross-hatch the cylinders for oil retention on the walls (better lubrication and less friction as the pistons move), order cams with an optimum grind for valve lift and duration (this determines the airflow characteristics of the engine, where it'll make peak power and torque, etc), they'll knife-edge, balance, micropolish, and shotpeen the crank for less turbulence in the oil pan and lighter rotating weight (so it doesn't drain as much power), and they'll assemble it all to exacting fit and torque specs.

The end result is that you can gain 20% or more output from the engine, or even more still if they do porting/polishing on the components, extrude-honing, etc. With that stuff and custom-spec cams, the output could go up 30-40% even. It's a big power gain, but it comes at a big cost (as I'm sure you can tell). It's only really worth it on a race engine. Anyone who says they can blueprint a motor for a grand or less is full of it. You'd honestly be looking at $2000 or more easily if you only rebuilt it to stock spec with stock parts. Using aftermarket, high-performance parts, custom cams, extrude-honing, porting and polishing, etc, can easily kick the price up to $5000 at the least, and depending on the components you buy, $10-20,000 is very easy to ring up. It's not for the faint of heart. But it may be all the difference in racing, especially in an SCCA class like Spec-Miata racing, where engines have to be unmodified (as in, using only OEM parts). There's no rule against blueprinting as long as the parts are all available at the dealership parts counter. It says you have to use stock parts, but it doesn't forbid you from using the best possible combination of stock parts possible.

Nov 17, 2009 | 2004 Pontiac GTO

1 Answer

97 four runner 4cyl. Engine fan runs all the time

If the A/C is on, it is supposed to run all the time. If the A/C is off and it is still running all the time, then check the thermal relay. It is probably stuck in the closed position. The fix is to replace it.

Aug 09, 2009 | 1997 Toyota 4Runner

1 Answer

93 4 Runner fuel problems

Don't worry, there is only about 100 things that can keep the EFI system from working properly. Try this 1st: My '91 4runner wont run properly, or at all, when the Air cleaner / intake assembly is not hooked up / installed, it needs the MAS air flow sensor to measure the incomming air or it will not run. Then, Are you getting positive pressure of fuel to to the engine from the tank yet or is the pump just running? Thread a pressure gauge to the fuel rail on the engine & check pressure with key on / engine off (should be between 35-45 psi) Check / replace the fuel filter & try disconnecting the fuel & return lines lines @ both the tank & Throttle body & blowing out with 25-50 psi air to ensure the line is clear. You may need to vacuume test the fuel pressure regulator on the fuel rail. If you are still having problems, it can be the injector(s), the fuel pump relay or any of the sensors in the EFI system including the VSV sensor, which measures the fuel pressure & relays the info to the ECM (computer). To check & test all of the sensors it will be worth the $20-30 Haynes or Chilton Manual. start with the easy stuff though, then work up to the sensors & electronics

Feb 18, 2009 | 1998 Toyota 4Runner

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