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init6's avatar
init6
Explorer
Jul 20, 2021

Loss of power when driving

I have a 2005 pace arrow with a workhorse chassis that seems to have lost a lot of power. The the point that it can barely make it up a hill or get up to 65 mph on the interstate. This comes after pulling it out of long term storage. I haven’t driven it in a while but have had someone starting it for me once a month and adding new fuel and stabil when needed while I was serving overseas.

Any thoughts on what to look for? It sounds like it is running fine for the most part aside for a sputter every now and then when I put the gas pedal down all the way. At some point today while going up a hill, the check engine light came on.

Thanks in advance

25 Replies

  • OP didn’t specify diesel or gas, but either is also susceptible to marginally clogging fuel filter.
  • Good tips, I’ll start looking into those. Thanks again
  • I would look at getting a full tank of fresh gas first. Sounds like you may have a tank of flat gas that has degraded over time.
  • Since the check engine light came on, I'd think the first order of business would be to see what code was set. That may help with diagnosing the problem.

    One thing to check is the mass airflow sensor, if your engine has one. They sometimes get dirty and cause stumbling upon application of the throttle (among other symptoms). A general lack of power can be caused by a dirty engine air filter or some other obstruction in the air inlet; with modern computerized engines, those things don't tend to cause other obvious effects--they just have the same net effect as limiting the throttle to not open fully.
  • Make sure some critter hasn't stuffed the intake hose with nesting material. check it all the way back to, and including the intake filter. It's a quick easy way to check one off the list, and possibly find the problem.

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