20 Most Recent 1997 Toyota Tacoma - Page 3 Questions & Answers

Automatics have them on rear of transmission and here's a link to yours.

Possible causes - Ignition Coil No. 1 harness is open or shorted - Ignition Coil No. 1 circuit poor electrical connection - Faulty Ignition Coil No. 1 - Faulty Engine Control Module (ECM)

is this a question formed as a statement? i want to, ? how to? where is it. why do you want to? did the scan tool tell you its bad. is the engine knocking or detonation or pinging? is engine running lean (i sure can ping,but the knock sensor rolls back(via pcm) all spark timing, so that ping ends. why not post symptoms first with a question, someone broke mine it unscrews. so?

Ck the relay switch the high one to the low they are the same also I believe they are fused in the one fuse box under the hood behind the battery

Check fuel pressure. Parts stores rent a fuel pressure gauge. If fuel pressure is low, check fuel pump and filter.

If you can remove the relay, it is easy to test if you have a multimeter (volts, ohms, amps). A relay is simply a switch that works electrically, using a low current circuit to turn on and off a high current circuit, for example a headlamp or spot lamp circuit that usually draws anything from 10 to 30 amps, and is switched on by a switch designed to handle only 2 or 3 amps. Typically it has four contacts, but sometimes contacts are shared, and the relay ends up with just three contacts. To test the relay (once it has been removed) find the low current contacts. This is achieved by switching the multimeter to Ohms, turn it to the lowest reading (200 or less) and probe any two points on the relay. Carry on testing until a pair is found that shows a reading on the meter. These two points are the "pick" points, or the low current circuit contacts. Placing a 12 volt current across these two points will close the circuit over the other two points. If you can't find any two points that indicate a reading on the Ohm scale, your relay is shot. If you've found the two points described, connect a wire to each one and connect one to the battery +, the other to the - or earth, and listen for a "click" sound indicating the closing of the contacts. The high current contacts can still be faulty, so check with the meter for continuity across these points when the relay pulls in. Please let us know if this helped at all..

U have a short in the system ,could be in back or anywhere u should ck with an electrical mechanic or put it on a tester at mechanic shop

fuel pump bad

If you can locate the trans serial number that would narrow down any options. Its usually stamped into a flat spot on the trans or on a stamped metal tag on one of the bolts. I would expect only one from the same size/ spec/ model/ year/ production run would be a swap. You don't say what is wrong? Is it not fixable?

The firing order of in-line 4 cylinder engines is the same (for old car models) of Chevy, Olds, Pontiac, Dodge/Plymouth, Datsun/Nissan, Honda, International, Isuzu/LUV, Jeep, Mazda/Courier, Mitsubishi, Opel, Toyota and VW. "Always check the exact firing order of your engine. It is is generally stamped or cast on the engine's intake manifold, valve cover or cylinder head." Source: "Tune-up and Electrical Service" page 161 ISBN 1-879110-15-6 published by Do-It-Right Publishing, Inc P.O. Box 839 Newhall, CA 91322-0839

firing order is 1,3,4,2.

It sounds like the blower motor resistor is bad. Replace it.

you will found it on the trans side case, screws in and is a big bulb you need a 22 or 24 mm wrench to remove it.

I would suspect the distributor, cap & button. (if so equipped) Or coil pack(s)

Continue on with your testing & checking No one can guess without a professional scan tool & a road test & then look at data & what was done or not done, in the way of Preventative Maintenance Injectors get mailed away for Ultra-Sonic Cleaning Nothing else does a thing & you do not replace any parts not tested & failed a test

Shouldn't need to Best to use a code reader When you clear the check light ,you clear all data needed to diagnose problems,so your best to leave it & when the emission monitors run, it will go out,if the correct repair was made & no other issues