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NGK plugs, 5.7 eng. runs worse under load. double checked firing order and wire placement

2007-04-14 09:50:23 · 8 answers · asked by missliltude 2 in Cars & Transportation Maintenance & Repairs

8 answers

Fouling with what? If it's oil, you probably have worn rings and valves.

2007-04-14 14:30:01 · answer #1 · answered by Nomadd 7 · 0 0

unplug the ignition coil and carry the throttle open and crank the motor with out beginning pay attention to it crank is probably going certainly one of the cylinders *working away* or cranking swifter. then i might plug the coil runn the motor and pull plug wires on the same time because it working to verify the cylinder this is lacking. Finaly i might do an injector stability attempt to work out if between the injectors is caught. once you pulled the plugs you regarded at them to work out how the cylinders have been working appropriate? substitute into between the white or drasticly a distinctive color? you probably did run the wires appropriate? you didnt crack a plug insulator? nicely thats a beginning factor. sure you will pay attention uneven compression swifter then you definately can do a compression attempt. My wager no longer a burnt valve.

2016-11-23 20:04:06 · answer #2 · answered by caligiuri 4 · 0 0

First off i would take out those NGK's and put in some acdelco plugs. Is your truck running rich? If so you may have a bad 02 sensor. And that could be why you are going fouling plugs so fast.

2007-04-14 10:02:35 · answer #3 · answered by NapaBoy 2 · 0 0

What do the plugs look like when they come out? have you replaced the fuel filter? the firing order is 18436572 does it skip? or just run bad under load? possible plugged catalytic converter

2007-04-14 10:02:45 · answer #4 · answered by justme23005 2 · 0 0

Check air fuel ratio, what type of fouling do you have carbon oil , excesssive heat, if it is oilly your valve seals are possibly bad are rings check compression., also check heat range for plug, check your timing also it can cause fouling , also use a Bosch platnium

2007-04-14 10:00:40 · answer #5 · answered by Hey Moe 4 · 0 0

well is the check engine lit on ??
did you crack any of the plugs when you put them in ??
have you checked the ign. timing ??
i could keep going on

2007-04-14 10:04:55 · answer #6 · answered by bowhunter6778 2 · 0 0

Slow down?

2007-04-14 09:57:26 · answer #7 · answered by Auntie DeLuvienne 2 · 0 0

my suggestion is buy a FORD

2007-04-14 09:59:28 · answer #8 · answered by Anonymous · 0 0

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