my jeep isnt running the best. sometimes when i start it i have to put my foot on the gas and give it some to start it up. it makes a weird *** sound when i turn it off. im thinking injectors might be bad but i wanna make sure before i buy some. any way of testing them?

 

i feel like there are some simple steps to be taken here. but before suggesting anything i was wondering what some of the other symptoms are? any diff. when its cold to warm. throttle response. since its been cold there have been more posts of this nature... could be the TPS or AIC valve... have you tryed running good injector cleaner?

 

whats a good brand of injector cleaner? my temp gauge is working right either. wont go about like 110. idk if it the cold weather or not. just pulled all my plugs and regapped them and cleaned them off. the engine seems like its knocking a little bit. i hear lucas helps but havent got any yet.

 

Hold off on those injectors. This is probably something else.

Replace those plugs. Cleaning is not of much value with the cost of new plugs. The best plug for the distributorless ignition of the 00-01 is the NGK. Gapped to .035

The best fuel system cleaner for PROBLEMATIC systems is BG44K. Hands down. It is really, really good, but is about $20. I use TECHRON (by Chevron) for a preventative additive. Wally World carries it for about $6.50.

Having to "tip in" the throttle to start the engine can be a faulty throttle position sensor. They can be tested and are only about $45 to replace.

 

well i got new plugs about 4 months ago so i figured they still would be good but its only a few bucks for some new ones. i used stp fuel additive twice since it was on sale at autozone and i know all this damn ethanol is horrible for our jeeps. thanks for all the input man

 

this is the sensor, right?