Hello friends!!

It's been a few days that my car started hesitating. I've put a fuel system cleaner but the problem continues. I believe it could electrical probl.
Also its been sometime that it back fires (NOT LOUD) . You can't hear it but I feel in the engine too. Ex. when the car is on and it's in park and I'm looking at the RPM I notice it floctuates a little at the same time I feel the vibration/back fire/dings call it what you want. Note: It's not loud, you can't hear it but feel it.
I have a new fuel filter installed 2 weeks ago, so I know I don't need to change that.
WTF is WRONG?????????????

thanks

 

Did you check your spark plugs??? I had a little hesitation problem and changed out my plugs now it is all good.

 

I changed them a month ago. I got the Bosch platinum. However I've heard NGK is better. Anything else????

 

Yeah, pitch the boschits and put in some nice NGK laser plats.

Avialable on my website in the tuneup section

 

check your timing with a timing gun and change those plugs !

 

put a ohm meter on all your injectors mayby ones going bad they should all read between 10 and 14 ohms

 

check the coil packs... get a buddy with good coil packs and start switching them until you find the bad one(s)

 

Thanks !!!!!!!!

 

coil packs??? its a vg, check the cap and rotor, also check all the wires. btw have you checked the air filter???

 

you could be running rich, as well. replace O2 sensor. all suggestions so far are valid.

 

slightly OT, but I have Bosch platinum plugs in my max and they work just fine..no hesitation, smooth idle, easy acceleration, quick starting, no oil burning, no problems that can possibly be related to spark plugs at all..

 

do sparkplugs affect how much oil your car eats. Cuz mine devours quarts of oil.

 

Thanks to all.

Just got NGK V power plugs during lunch from Auto Zone at great price of: $1.69 each.

As far as the air filter. Just put in a air intake and have a brand new cone.

I put a fuel system cleaner, thought may be bad gas.

I'll install the plugs tonight and check the wires. I'm 95% sure it is due to some ignition issue.

thanks to all

Forgot to ask: As far as the cap and rotor: Should I go with Bosch or original from dealer? I know the dealer price is not that bad.

 

I didn't see the 1991, I just saw it was an SE with a hesitating prob... kinda like the VE

 

i know some say bosch is fine, but i would stay far away from that. i've used them, were fine for a while, and soon they sucked.

go OEM/NGK.

 

these Bosch were put in the car in '99 (while my uncle still had the car), and now have about 13k miles on them..they're bosch platinum and they still work fine..so, I see no problem with them..I guess I (well, we if you wanna count my aunt and uncle since they still had the car for 10k miles/2 years after putting the plugs in it) just happened to get a set that don't cause problems (der, no reason for them to be different though)..or since the car has had bosch plugs since the oem ones were taken out, or somthin..oh well, I don't really care as long as it works..too cold to worry about it as long as its getting me from point a to point b and back..