Question about 1997 Toyota Tacoma

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How can I change fuel injectors on a Toyota Tacoma 98 4 cylinder

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The Toyota Tacoma has a fuel injector that mixes fuel with air. This technology almost completely replaced carburetors in the late 1980s and its programmable firmware allows the same hardware to be used with different fuels. A fuel injector is only a nozzle and a valve; it still requires a pump to inject the fuel into the engine.

    • 1 Determine which fuel injector your Toyota Tacoma will need. This depends not only on the make and model, but also the engine size. Models made before 2005 may have a 2.4L, 2.7L or 3.4L engine. The current version may have a 2.7L or 4.0L engine.
    • 2 Relieve the fuel system pressure and disconnect the negative battery cable with a socket wrench. Remove the engine under cover subassembly and drain the engine coolant. Detach the intake air connector and disconnect the throttle body motor assembly with a socket wrench.
    • 3 Disconnect the fuel lines and remove the fuel pressure pulsation damper assembly with a socket wrench. Unplug the electrical connectors for the fuel and vacuum switching valve. Remove the engine wiring harness clamp and the air conditioning compressor clutch connector with a socket wrench.
    • 4 Remove the two fuel rail mounting bolts with a socket wrench and lift out the fuel rail with the injectors still attached. Pull out the fuel injectors and discard the old gaskets.
    • 5 Use new gaskets and install the new fuel injectors by reversing the removal procedure.
    • 6 Fill the coolant reservoir with coolant of the proper grade and type. Start the engine and check for fuel leaks.

Posted on Feb 18, 2012

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Posted on Jan 02, 2017

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SOURCE: 2003 parking bulb toyota tacoma

OK, I just fixed mine. The unit pulls out. You have to get a screwdiriver, wrap it with a cloth so it doesn't scratch the paint, then gently wedge the entire unit out. When it pops out, you'll see the clips that keep it in place. You might think its breaking when you pull it out, but trust me this is how you do. Just be gentle with it. After you get the unit out, simply take the socket out and replace the bulb. I did it in five minutes.

Posted on Nov 14, 2009

  • 273 Answers

SOURCE: Fuel Filter, 2002 Toyota Tacoma

follow your fuel lines back from the injectors/carb it is a cylinder shapped unit should be at the top of the engine near the windscreen

Posted on Jun 06, 2009

  • 125 Answers

SOURCE: Can't find the fuel filter on 2004 toyota tacoma 4 cyl 4x4

look under the truck

Posted on May 04, 2009

  • 4 Answers

SOURCE: How do you change the spark plugs on a 2007 Toyota Tacoma?

bring it to a garage

Posted on Jun 05, 2009

SOURCE: Have a 1999 Toyota Tacoma with a 3.4. Vehiclw was

Most likely I a would suspect the fuel rail had moisture in it. If you checked emissions it would most likely show no HC and alot of 02 and no CO. If it does show alot of HC then I would suspect sticking valves intermittantly . The pinging really points to no fuel issue tho. If you pull the injector connector off and no change then I would remove the fuel rail and inspect. Also make sure the wires are in the correct locations. It easy to get them wrong.

Posted on Sep 03, 2009

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Number 4 cyl. misfire/ 2.4rz engine/98 toyota p.u. how to fix misfire of number 4 cyl.on toyota 98 tacoma p.u./2.4rz engine


check compression, check valve clearance, check injector for properly working, check for vacuum leak around this cylinder.

Feb 10, 2015 | 1998 Toyota Tacoma

1 Answer

Had an engine check light come on, and it runs rough when you need power to go up a hill or drive over fifty mph. I believe I got some bad fuel. Would like to know the exact location of the fuel filter on...


Well I went through alot of pain and money to finally get my 98 Toyota fixed. I was getting misfire codes and comes down to the injector...cost me over $500 to fix but runs like a new one could have kept this from happening by using "seafoam"........

Feb 09, 2011 | 1997 Toyota Tacoma

1 Answer

Giving a 300 and a 301 code where do i start sounds fine when started and then when you put in gear it start misfiring


P0300 - Random / Multiple Cylinder Misfire Detected

Possible Causes:
- Improper spark plug
- Insufficient compression
- Incorrect fuel pressure
- The injector circuit is open or shorted
- Fuel injectors may be faulty
- Intake air leak

Possible Solutions:
- Perform Injector Service
- Replaced Spark Plugs
- Replaced Injectors
- Replaced Ignition Coils

P0301- Cylinder Number 1 Misfire Detected

Possible Causes:
- Improper spark plug at cylinder #1
- Insufficient compression at cylinder #1
- Incorrect fuel pressure
- The injector circuit is open or shorted at cylinder #1
- Fuel injector #1 may be faulty
- Intake air leak at cylinder

Possible Solutions:
- Perform Injector Service
- Replaced Spark Plug #1
- Replaced Injector #1
- Replaced Ignition Coil #1

Most likely your issue is with cylinder number 1. Follow the info I have provided and you should be able to solve this issue.

Jan 14, 2011 | 2002 Toyota Tacoma

1 Answer

#4 cylinder is misfiring in my 1997 toyota tacoma 4x4. Auto parts store put on machine and got this result. They say that it could be spark plug. Any Ideas. Looses power on mountain.


Possible causes for a misfire:
Spark plug
Spark plug wires
Weak or bad coil
Dirty or a bad fuel injector
Low compression in cylinder
This is a case of testing and process of elimination. Have them all tested to find out which one is the culprit. Change the plug and wire to a different cylinder, if the misfire happens in that cylinder, you'll know it's either the plug or the wire. Without doing any testing, it's hard to say what the cause is.

Feb 10, 2010 | 1997 Toyota Tacoma

1 Answer

1998 toyota tacoma P0302 Cylinder 2 Misfire Detected Need help?


do a compression test on the engine.if that checks out ok then the problem is either an ignition problem or a bad fuel injector

Jun 15, 2009 | 1998 Toyota Tacoma

1 Answer

Fuel Filter, 2002 Toyota Tacoma


follow your fuel lines back from the injectors/carb it is a cylinder shapped unit should be at the top of the engine near the windscreen

Jun 06, 2009 | 2002 Toyota Tacoma

1 Answer

2006 Toyota Tacoma Low Mileage or Not...Spark Plug Life


24 mpg on the highway is actually pretty good for that truck. at 48000 miles and being 3 years old its time for plugs, air filter, and fuel filter if available. thats cheap maintenance for now. but if very self conscious, run some fuel injector cleaner first, then change the plugs, because any octane booster or fuel injector cleaner can run the risk of fouling out a plug, by creating a hotter spark then what, normal gas does. the burn is hotter.

Mar 18, 2009 | 2006 Toyota Tacoma

1 Answer

99 tacoma


Still need the codes.
Injectors can go "bad" in a couple of different ways; all they are is an electromagneticaly controlled nozzle. When the ECU "fires" the injector, it pulses a ground circuit for 4-8 milliseconds, the electromagnet powers up, the valve at the bottom of the injector opens, and the fuel shoots out, under pressure. The wire can be bad/chafed/corodded/ The electromagnet may be weak. The nozzle may be stuck. Lots of things. But, to put in an injector for a number 4 cylinder misfire (p-0304 code) would be one of the last things that I would do.

Nov 17, 2008 | 2001 Toyota Tacoma

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