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Re: i cant figer out whats rong with my truck
If it was me i would check all of the vaccum lines and check the timing checkout these websites www.autozone.com and www.alldatadiy.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your truck wish you the best of luck Michigan Man.
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Okay, you know each injector has a power wire, and a ground wire that goes into the pcm? All of the power wires to all six injectors is a green wire with a red stripe.
The ground wire colors are as follows:
inj 1: green wire/blue stripe.
Inj 2: gray wire/yellow stripe
Inj 3: violet wire/gray stripe
Inj 4: yellow wire/orange stripe
Inj 5: brown wire
Inj 6: green wire/white stripe
I should note that the wiring diagram I am looking at shows this diagram as from a 2008 model manufactured during 2nd quarter of the year 2008. If your injector wire colors are different than as listed above, there may have been production changes during the year. But the power wires to all six injectors would still have the same color wire. You could figure it out that way: in other words, looking at the injector harness, same wire color to all six is the power wire, all the odd colors are the ground wire for that injector. Hope this makes sense to you. Good luck.
could be the guage itself, the sending unit for those guages or the wiring in between. find the sending unit, should be two wires the sending unit actually changes the amount of voltage going to the guage. cross the two wires over at the sending unit, the guage should read all the way in one direction, do this for both guages. if the guage moves to an extreme position when the wires are crossed the guage and wiring are fine and the sending unit is the culprit. if you cant get the guages to move by crosing the wires, suspect the guage itself. find you a freindly garage to help w your repair. hope this is useful
first question is it a four cyl? or six did u change the coil pack plug wire if a four cyl? did u use ngk plugs to replace the plugs? or it may be a fuel inj you would have to swap fuel injs with a different cyl to see if it follows the inj or stays with the cyl, if it stays may need to diag that cyl further compression check etc
Crankshaft sensor is what ECU uses to fire injectors. Check it out with a voltmeter. Look for continuity, resistance and voltage. Look over connectors they are likely to be corrored or lose.
The coil is where the spark is made in this vehicle check it for leakge, resistance and voltage and corrosion .
make sure your fuel filter is not clogged and there is gas getting to the fuel rails by the injectors and give this website a try its www.alldatadiy.com and i hope i have been able to give you some help Michigan Man.
Hi,have you done a fuel pressure check on the vehicle.This will check the status of your fuel pump.If its a carb engine it will be 5 to 7 psi.If its fuel injection it will be approx.35 to 45 psi.Good Luck!!!