Jumping rpm when acccelerate
10-08-2017, 03:47 PM
#1
Thread Starter
Join Date: May 2016
Location: MN
Posts: 14
Jumping rpm when acccelerate
Hi. I was driving on a gravel road and my rpm s started jumping up and down. I stopped car. Made sure all spark plugs and distributor were attached properly. One spark plug wire was actually lose. I reattached. Car idles just fine. When I accelerate the rpms jump up and down and the engine is not having a good time. It Sounds real rough. Any idea what the problem could be? Thank you
10-09-2017, 07:13 AM
#3
2nd Gear Member
Join Date: Aug 2017
Location: North Carolina
Posts: 489
Jumping rpm when accelerating
Treyj45, Sounds like fuel distribution. Since it was likely a bumpy gravel road, I would guess at a connection at your electrical fuel pump, or maybe a stone flew up and dented your fuel line, causing a mild fuel blockage. Let me know if I am in the ballpark. These are only guesses from past experiences.
10-09-2017, 09:19 AM
#4
3rd Gear Member
Join Date: Aug 2015
Location: SE Michigan
Posts: 939
Just to be clear, when you say that the RPMs are "jumping up and down", were they still reflecting actual engine speed? Does the gauge read improperly, or is the engine surging? I think it's the latter, based on the engine sounding "rough" but I see that you haven't mentioned any driveability issues like shuddering or stalling.