WebMay 19, 2015 · Lately I am facing an issue where the RPM needle is bouncing in the tachometer when the car is idling. The normal idling RPM is around 820. When idling, I … WebJul 9, 2005 · My SC has a very jumpy RPM indicator when the car is warm. Sometimes, the needle will float all the way to the right and bury itself over 7,000 or just go dead, only to bounce back to an accurate read moments later. I have triede to recreate this but there doesn't seem to be any consistent factors that are related (that I know of).
rpm Needle bouncing why - F150 Forum
WebSAULT STE. MARIE, ONTARIO. Store #3155. 446 Great Northern Rd, Sault Ste. Marie, ON, P6B 4Z9. 705-253-9522 WebAug 24, 2004 · Your idle speed is either set too low, or if you like it idling that low, what you need to do is adjust the meter on your tach so that. the needle swings to 500 rpm instead of 400 rpm. Keep the tach connected to only one coil. About the bounce, like I said, maybe your idling speed is set too low. boatingholidays.com
7 Reasons Of Car RPM Bounce When Letting Off The Gas - Car
WebFeb 19, 2007 · could be faulty coil pack as well but its hard to say if you dont have any codes...MAF sounds about right as well....My cars needle has done that sense day one but the motor sounds fine the needle bounces form like 880 to 950 on the tach adn it only does it once about ever minute and a half WebMay 27, 2024 · While driving, the RPM needle will bounce about 100-200 rpms however the engine is not changing rpms. Sometimes more noticeable at a lower speed, 34-45 mph. It can also be duplicated while parked and raising the rpms to 2000-2500 rpms. I've used vcds to plot the rpms, and it's rock steady +-20rpms. I checked the torque converter using vcds … WebApr 1, 2024 · Your car, truck, or utility vehicle should idle smoothly. 2. Dancing RPM Needle While you are sitting at an idle, take a look at your tachometer to see what the RPM needle is doing. If it is bouncing up and down or dancing, your vehicle is either getting spurts of too much air or too much gas. clifton9