My car hesitates as if it wants to stop when in idle, why?

Question

My car hesitates as if it wants to stop whenever it is in idle, can someone please tell me what may be causing this problem?

Can someone please tell me what may be causing this problem? The car is a 1998 Caddy Catera...V6 engine

Answer 1

That sounds like a lean air/fuel condition as suggested in an answer above. When the accelerator pedal is first pushed open, the throttle plate opens to allow more air into the intake manifold. If there's not enough fuel, the hesitation can occur. I recommend cleaning your throttle plate and bore where carbon deposits build up and affect your idle and off idle performance. The vacuum leak is the next culprit to address.

Answer 2

When was the last time you had a major tune-up? It could be that you may need a tune up. A major tune-up consists of changing out the spark plugs, distributor cap and rotor if it has them, ignition wires, ignition coil and fuel and air filters. It can also be the idle air control valve or dirty fuel injectors. What type of car is it? What's the engine type and year model? I need this info to further trouble shoot your problem.

Answer 3

may well be countless issues. First to analyze is engine oil low perhaps low. determine oil is at ultimate point and notice if that helps. If that doesn't help it would desire to desire the idle adjusted. The idle screw is often close to the back of the engine on precise close to the rear of the valve cover. even though if maximum require an prolonged factor screwdriver like 12 inch or longer to get to this not undemanding to realize place. as quickly as you stumble in this screw you turn it one way till the sound and idle sounds precise. If it is going the incorrect way basically turn the screw any opposite direction. it may additionally be a undesirable gas filter out or gas pump. I doubt it is the case on condition that your vehicle is barely a 2002 it is going to possibly not might desire to be replace yet till you reside in an exceedingly dusty section. It basically that those products might desire to reason your vehicle to idle such as you clarify. wish this helps and you're able to unravel the challenge because of the fact many shops are rip offs as you reported. locate somebody you have confidence a family contributors chum may well be advantageous.

Answer 4

i own a repair shop,and it may need a real good tune up,,also if it has an air idle control calve on it this may be getting clogged up,or going out on it,this will cause that also,,the valve you can take off and clean it and that might help it,other wise it could be a bad gas filter or air filter on it,,there's a lot of things that can cause it,,you can take it by any auto zone store and they will check it free of charge for you,,and tell you if it has any trouble codes in it,,its a free scan,and this will hep determine whats causing this to happen,,good luck with it,i hope this help,s,,have a good x-mas

Answer 5

there can be many problems to this issue. 1st: your fuel system may not be bringing enought fuel to the engine, or may just not have enought presure to the fuel to get it there on camand.2nd it could be that you may be using too low an octane of fuel (you may be using regular and your car requires premium).3rd (ONLY) IF YOU HAVE DONE MODIFICATIONS (turbo kits & superchargers) you will NEED to upgrade your fuel system to get max HP (horsepower) and to make it respond on demand. 4th: you may need a tune up or get your ECU reprogramed.

Answer 6

Either a small vacuum leak or your idle solenoid valve is sticking.

Answer 7

Your idle is probably just low.....most shops with any ethics can turn it up for you in like 5mins for free.

Answer 8

Check the mass air flow sensor. If you have alot of miles (80,000+)it may be time to replace it

Answer 9

Your idle is set to low.

Coach

Answer 10

Fuel management system is up the spout.