My car I think is missfiring when I start it and also when I'am driving. The car vibrates or hesitates/ acts like its going to cut out. I changed the spark plugs less than a year ago so I dont think thats the problem.

ANY SUGESTIONS OR IDEAS ??

 

check your coil packs. you can buy one to test them all out. just pull them out one at a time from each cylinder while the car is running. if the rpm changes when you remove the coil pack then those cylinders are fine, if nothing happens then those ones are bad. it can be one or two its usually one. the cylinders are numbered from 1-2-3 from rear passenger side to driver and 4-5-6 front passenger to driver side. hope that helps.

 

Did you use the good "oem" NGK plugs or cheapos ? .... How many miles are on the car at the present time ? Is the car's CEL on.....? If so, have the codes checked.

By the way that you described the way that the motor is acting, it appears as though Mugenspire's advice to look for a bad coil pack would be a good place to start. As our cars age with 10 yrs / 100 k on the dial, things start to wear. The coils are about $50 a pop. A very quick and easy check to perform one at a time.

 

start with a trip to any parts store for a free code scanning/reading

if there are codes for multi cyl misfire you probably need 1 coil
If no codes its not a coil

spark plugs- as said above,,CORRECT NGK 8 dollars each?
if not pull one and inspect--likely problem there as other plugs wont work in the TL
coils can be damaged internally if set down hard on bench during plug change

Guessing you are well past 100kmiles and never cleaned the `egr port and passage of the intake manifold`? that will cause slower start,idle roughness, miss feeling and low power
easy diy 3 cans carb cleaner and a wire coat hanger (no kidding)

Start with a parts store for the FREE code scan (except Ca.)
save time spent guessing

 

Im having the same issue. I also believe its the ignition coils. Codes read misfiring multiple cylinders. I have NGKs in, did a tune up 4 months ago. The car is currently at a friend's shop, getting fixed. Ill update as soon as the car is fixed.

 

The car is 12 yrs old
2000 TL (Bought in 99)
104xxx

Oh & my CEL is flashing.

 

Hey 00RubieTL, Good luck....it's good to have a friend at the shop, otherwise you could get royally hosed, ha...hah ! Multiple misfires are usually just one bad coil, as the codes for the other's just go off due to the erratic running at the time. Ahh...oh...ah !

 

that is correct,,multi cyl misfire and charging system test good=
buy 1 coil 50 bucks and start testing where it needs to go
we can walk you thru this

you can have a buddy or a mechanic,,but not in the same person

 

its possible to damage the coil internally during plug change as they are fragile inside
just setting it down on workbench can disrupt it
then a few months later it quits working

 

Any updates so far, as to progress in resolving the misfiring issues ?

 

Sry I took so long with the update. After 2 days of diagnostics. For $100 ducks (yes i said ducks) & a Monster Seafood Plate from Bob's Fried Clams. He found a bad coil & a leak in the fuel regulator hose. She is running like new once again. Next up timing belt and water pump. Hope this helps yall.

 

guys i checked my spark plugs before buying the coil pack and the damn spark plugs were all lose i guess when i did a tune up i didnt tighten them all the way. car runs better now

 

i think im still going to save up and buy the coil packs though

 

Only replace coil packs if needed. They either work or don't work no grey area for those. Replacing them and it's not bad is a waste.

 

I totally agree. "If its not broken, dont fix it."