This problem just started this morning when I’m in gear everything is fine but when I put my clutch in to up shift or down shift my rpms shoot up to 4000 from 2500 what I normally shift at and I put it in neutral it still keeps revving until I put it into gear while it’s revving super high does anyone know the cause of this?
Floormats under or over the gas pedal, a sticking throttle body, a bad idle air control valve…
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I checked my pedal and my floor mat nothing’s getting stuck and when I let off the gas it’s all fine until I put the clutch in then it shoots up and keeps revving
Idle air control, sticking throttle body, sticking throttle cable.
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I Appreciate the info I’ll do my best to look into those things. Is it bad of I shift while it’s revving like that? I had to do it to get to work this morning
No, not really, especially if you let the RPMs drop back before releasing the clutch.
I think it keeps revving if I hold on to it and let it off. I get it to stop by playing with the clutch/gas a few times or going into gear. I’ll try to turn it off and on too
The danger is the problem might get worse and cause uncontrolled acceleration.
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Yeah I agree I’m driving to the shop straight from work and leaving it till it gets fixed. Its my friends shop so I still wanted to figure out what’s wrong with it so I can do my part on fixing it as well
He has a shop ? Then let him tell you what is wrong and what you can do to help fix it. I can almost gaurantee he does not want to told that some anonymous person on the web said to fix something.
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lol … sorry to laugh, but this again proves cars can develop really unusual problems. One of the reason Car Talk’s radio program was so popular. I don’t recall anyone posting this symptom here before.
Does your truck use a cable-activated throttle? i.e. can you determine the throttle plate position just by looking at the lever the throttle cable attaches to? If so, ask a helper to push on the clutch pedal (at idle) while you look at that lever in the engine compartment. The lever of course shouldn’t move. If it does, you have an important clue.
Here’s something weird to consider btw. When you press on the clutch pedal you are actually pressing on the engine’s crankshaft. And since the crankshaft is firmly attached to the engine, you are pressing on the engine with quite a bit of force. If the engine is able to move (b/c the mounts are not properly keeping it in place), that movement might cause the cable to tighten & move the throttle lever.
After work i pushed together the cable behind the clutch even though it already seemed tight, and just pushed the clutch up and down a few times and it drove just fine. I drove to my friends shop, it’s a crane mechanic shop but my friends dad pretty knowledgeable in regular vehicle mechanics but he’s out of town, so my friend and I took it on a some more test driving. looked at some stuff and it seemed to go just go away and work like it did the day before. So when his dad gets here to he’s gonna take a look at it. I looked at my post first text and I must of been tired because it didn’t make sense. It only starts revving like crazy when I put it in neutral gear or have my clutch in so once I put into a gear and let of the clutch it stopped.
I can’t quite determine what you did exactly to eliminate the symptom, but it sounds like you are on the right path. One time I had a problem with my truck’s carb’s throttle/accel pump linkage, knew it wasn’t working correctly but couldn’t figure out how to fix it. Basically all I did was stare at it. Then for no apparent reason, it started working perfectly, and has been ever since. No idea how I fixed it …lol …