I have the same problem. I believe the idle air control valve either needs to be cleaned or replaced.
Maf sensor check it they have a cleaner for it. Like 6.99 at auto zone
check fuel pressure regulator
If a 1989 Suburban hesitates when accelerating from 45 miles per hour, the carburetor might need cleaned. A clogging can cause surging and hesitation.
A 1994 Cadillac Deville that has an engine surging problem and is stalling out can indicate it is not getting enough fuel. The fuel filter may be clogged.
Get your accelerator pedal checked, I had surging problems for 6 months and Ford could not find the problem, they finally replaced the accelerator pedal and the problem went away. The throttle positioning sensor seems to wear out in the spot that it is used most around 1800 RPM
the water was surging over the rocks
I recently had this problem. I took it to my mechanic. First he said that there was nothing wrong because the diagnostics came back clean. I asked him to keep looking. He found that the overdrive mechanism was damaged and needed to be replaced.
I found that a mechanic that used non Volvo transmission fluid caused this problem in my 2002. Once it was replaced with genuine Volvo transmission fluid it stopped surging.
The most common cause of surging is a dirty air filter. EPA approved carbs tend to run lean causing the surge condition described. Main jet needs to be replaced with next size larger.
When a 1999 S10 is sluggish and surging with going up hills, perhaps there is a problem with the transmission. The filter might need to be changed, more fluid added, or it might need a complete overhaul.
Governor hunting or surging is a problem that causes the engine to constantly speed up rapidly and then slow down rapidly.
i would start with fixing coolant problem brown coolant indicates there is oil in your coolant which indicyrs either a blown head gasket or a cracked head you fix that problem and more than likely, the surging problem will go away
Surging Seas - 1924 was released on: USA: 1 May 1924
you don't. computer does it. check that there is no air in coolant system or that temp sensor is not faulty. if your surging, that's your problem.
The most common cause for surging is a vacuum leak
No, surging doesn't rhyme with garden. The thing you need to look for with words that rhyme are the endings. These two words don't rhyme because the 'ing' on the end of surging doesn't rhyme with 'den' on the end of garden.
Check for vacuum leaks on the intake manifold and verify the operation of the EGR valve.
Surging is usually due to a dirty fuel filter. Cutting out is also related to a dirty fuel filter or a fouled spark plug. Remove and clean or replace both components. Surging is NEVER a spark plug. The reason it's surging is because your main jet in the emulsion tube is clogged.
Your RPM surging suggests a vacuum leak. I'd carefully check all the vacuum lines under the hood. You might find one disconnected, cracked or broken. It should be replaced. FriPilot
a bad throttle position sensor will cause: transmission shift issues, bucking, jerking, idle surging, engine cuts off, hesitation on take off, surge while cruising down highway. all or part of these symptoms will indicate a bad sensor. not all the time will check engine light be on!! sometime these symptoms will not set a problem code.
The description of "missing" could be a sign of fuel starvation (clogged fuel filter - failing fuel pump - clogged injector nozzles) or - a possible problem with the ignition system - bad plugs - dirty distributor- bad spark plug wires. The description of "surging" would lead one to believe that it is probably a fuel related problem.
I have the same problem, and there are a few sensors that do the same thing on vehicles now days. a bad tps sensor will cause: transmission shift issues, bucking, jerking, idle surging, engine cutoff, hesitation on take off, surge while cruising down highway. all of these symptoms do not have to be presant. a problem code does not light up if problem is not severe, even if codes do not come up you can still have a bad sensor. I have a 2000 Malibu 3.1, the tps is on side of throttle body at throttle plate, it is black and round, I believe the elec, connection has 3 wires!! take out 2 screws holding the tps in, pull off of throttle plate arm, when putting back on make sure you use a new o ring. when putting it on make sure that the throttle plate is closed. HOPE THIS HELPS, CARL
There are two main regions stable and unstable The pressure rate between the stable and unstable places is called surging.
The throttle body controls the amount of air going into the engine. The more air, the more rpms. If the throttle body gets defective and allows too much air into the engine, surging can occur. This surging can be dangerous because the vehicle lunges forward or backwards (depending on whether it is in a forward or backward gear) unexpectedly and without much warning (it occurs very quickly). There are many complaints on the internet about the "surging problem" with Ford vehicles, but Ford has not taken any action to safeguard the public by instituting a recall of the affected models or by notifying the owners of the affected models. It appears that Ford will not say anything about this dangerous condition until there is a fatality as a result of the "surging problem".