Questions & Answers for: Ford Expedition what is gm code po128

Question about 1997 Expedition

1 Answer

tachometer wont work on a '66 mustang. i installed a new $400 tach (called a rally pack) on a '66 'stang. it never worked right. goes to 1500 & stops. i later realized it had a G.M. HEI ign. system. i

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...code. what i recommend (as far as saving time/money) is if you had your dvd player installed at a custom shop (mom and pop's or even big box) give them a chance to look at it. Any shop that values ...

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...code was previously read as 2 bad 02 sensors, but I cannot find the paperwork with the specific sensors causing the problem. Hi, I work for Bosch and I run the line that makes the sensors. I have ...

...at the top of the accumulator, pointing towards valve cover as mentioned. Pain in the ****. Thanks. GM Junkie. that was the hardest **** to find .......... Thanks ...

...serious safety precautions. If you do not have manifold gauges, leave this job to a shop. I know GM trainers that have gotten hurt by small proceedural

...code relates to oxygen sensor, but that also happens with misfires....Diagnose the misfire first.....and do it soon as you are going to wreck expensive converter(s). Look for vac leaks, identify the ...

...MANUAL LOOK UP FORDS TRANSMISSION AND TRANSFERCASE REPAIR MANUALS THEY NOT CHEAP I BOUGHT GM TRANASMISSION AND TRANSFERCASE MANUALS IT COST ABOUT $150.00 DOLLARS  MANUAL 8 INCHES THICK ...

Question about 2000 Expedition

1 Answer

...GETS STARTED? over the years the plastic becomes brittle from heat an oil....this is common, my gm car had the same prob...sorry there is nothing u can do to prevent this from happening again

Question about 2006 Expedition XLT

1 Answer

Engine light on Error Code PO128 That calls for a bad thermostat

...a sensor to monitor shaft rotation. Also check wiring to tach sensor if your vehicle has a tach. Gm wiring harnesses under vehicles are notorious for coming loose or being hit by debris . The ...

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