So a few weeks ago I had drivin to Joplin (100 miles away) and had the car going non stop running around for 10 hours in bad heat. Then on the way back on the hwy I was going around 70 and the car started jutting the eventuality lost acceleration and then stalled (3 miles from my house of course). Fast forward to today and at a stop I go to press on the gas to take off I couldn’t get the car to accelerate at all for 4-5 seconds then it all the sudden accelerated. When I got home and pulled into the driveway and put it in park the rpm kept going to up and down between 500 to 1000 rpm. Up, a second later down and second later up and so forth. Any ideas out there??
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=== Update (07/29/2019) ===
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So since this post I’ve had the issue pop up maybe 4-5 times. The check engine stayed on for awhile but now is off most of the time. Yesterday I got new tires due to another issue I’ve been dealing with and ask a tech how much change the spark plugs. He took the plastic cover off the manifold and I noticed at the right of it was a small hose coming from that plastic piece I believe you mentioned ( in the picture). The hose looks kind of melted, cracked and is very loose. I can’t seem to find a diagram to tell me what it’s called so I can price/replace it.
So a few weeks ago I had drivin to Joplin (100 miles away) and had the car going non stop running around for 10 hours in bad heat. Then on the way back on the hwy I was going around 70 and the car started jutting the eventuality lost acceleration and then stalled (3 miles from my house of course). Fast forward to today and at a stop I go to press on the gas to take off I couldn’t get the car to accelerate at all for 4-5 seconds then it all the sudden accelerated. When I got home and pulled into the driveway and put it in park the rpm kept going to up and down between 500 to 1000 rpm. Up, a second later down and second later up and so forth. Any ideas out there??