Rpms fluctuating
#1
12-19-2018, 08:19 AM
Rpms fluctuating
Hi guys I have a 2001 f350. I’ve been having this problem OFF AND ON for about 2 to 3 months. The truck ideals perfect and also when you hit the gas the rpms go up perfect. Also I can run in cruse control no problem. But I’ve ran into a problem when I hit the gas I get a little bust of speed, sometimes you have to hit the petal further to get a reaction. If I try to hold a speed 7 times out of ten the rpms are jumping or declining I. Short jolts. It started right after I did an oil change. I’ve got some speculations that I might need a new pedal or might need to look into an eot sensor. It’s sometimes will run perfect though and sometimes there is something way off. Any opinions?
#5
12-19-2018, 09:16 AM
#6
12-19-2018, 09:41 AM
Tuned
#7
12-19-2018, 12:26 PM
if I hammer/steady climb it I can get to 55 no problem and put it in cruise with no problem. But when I’m trying to go let’s say 30mph without cruise rpms will be jumpy. Or from idle and hitting the gas a little It will jump and sometimes the pedal doesn’t respond well
Trending Topics
#8
12-19-2018, 12:55 PM
Tuned
Based on limited information and no data I would suspect it could be the accelerator position sensor...which I believe you could verify if you get a obd dongle and forscan...kind of expensive to just "throw parts at" but Riffraff has what you need...it changes based on build date (before/after 10/2/2000) and whether it is fixed or adjustable.
#9
12-19-2018, 01:32 PM
#10
12-19-2018, 02:00 PM
Tuned
#11
12-19-2018, 03:40 PM
#12
12-19-2018, 06:02 PM
Tuned
#13
12-19-2018, 08:43 PM
Elm327 WIFI for iOS. The one forscan recommends is about $30.
OHP WiFi Forscan OBD2 Adapter with HS-Can & MS-Can Switch for iPhone and Ipad https://www.amazon.com/dp/B06XJL31Z7..._-UTgCbN7RX559
There are some cheaper options on the A-Z but if you search you’ll see it’s a bit of a crapshoot if they will / won’t work with forscan.
OHP WiFi Forscan OBD2 Adapter with HS-Can & MS-Can Switch for iPhone and Ipad https://www.amazon.com/dp/B06XJL31Z7..._-UTgCbN7RX559
There are some cheaper options on the A-Z but if you search you’ll see it’s a bit of a crapshoot if they will / won’t work with forscan.
okay thank you!
#14
12-20-2018, 05:00 AM
I no what you mean. Happened after my oil change in october. Had rotella 15/40. Went to Delvac, which ive ran numerous times before. Didnt notice the touchy pedal until reaching destination of 30p miles. Within that distance, i filled up. Not sure if oil related or bad fuel. Went away after returning home though. Just did anutha oil change and a 60p mile dayrun. No issues.
Best way i describe it is a 9th injector when its touchy. Then theres the flatline response also, when hitn go pedal..
Best way i describe it is a 9th injector when its touchy. Then theres the flatline response also, when hitn go pedal..
#15
12-20-2018, 07:30 AM
Hi guys I have a 2001 f350. I’ve been having this problem OFF AND ON for about 2 to 3 months. The truck ideals perfect and also when you hit the gas the rpms go up perfect. Also I can run in cruse control no problem. But I’ve ran into a problem when I hit the gas I get a little bust of speed, sometimes you have to hit the petal further to get a reaction. If I try to hold a speed 7 times out of ten the rpms are jumping or declining I. Short jolts. It started right after I did an oil change. I’ve got some speculations that I might need a new pedal or might need to look into an eot sensor. It’s sometimes will run perfect though and sometimes there is something way off. Any opinions?