Changed my coolant

[z24forlife]

ok my engine temp somtimes passes a little over the half mark..like an extra line.. but fan wont go on.. I got coolent changed about 2 weeks ago think it might resolve the problem... Today its pretty hot here and, I noticed if i let the car idle a bit the temp will again pass the half way mark. Now is this really dangerous ?? Im driving a 2002 z24, picture in siggy.. I also got my feul system all clean out at the same time.. and, now somtimes im getting a rough idle.. sputters up and down of about 80 RPM's... Can it be the gas filter, seeing that the garage cleaned my feul system but didnt really change the gas filter... Car goes fine..i just idles a little rough somtimes but, not most of the time.. anyone can give some tips here.

Bye

[Lances133]

Maybe time for a tune up? Spark plugs? Air filter?

[z24forlife]

Hi lance.... the sparkplugs in my car are those very expensive kind.. you know.. I dont know what they are called but, the dealer told me that they are good for like 100 kms.. and, iv only got like 57,000 kms... air filter iv changed too..but it wasnt really dirty..eyy.... anything else... ?? My car is going ok right now..but, dont know if its gonna sputter again. I filled up my tank with super high octane also..

anyone..??

[Classicrocjunkie]

plug boots?

[z24forlife]

Hi Classicrokjunkie... never did the plug boots..... i dont have cables on my car.. its the ecotec... is there anyway i can test the boots before replacing them... ???? What about the gas filter.. might it be that too..????

thanks

[Classicrocjunkie]

fuel filter is also good thing to change. anything that would restore efficiency to your car will help make it idle better. hell maybe even shooting your TB with some carb cleaner could even help. Especially your IAC valve.

[redroush00]

Spoke to a GM tech the other day. Okay past middle (195) fan kicks on at 230. if it aint in the reddont sweat it.

[z24forlife]

alrighty everyone.... if i might change the IAC valve.. sounds like it could be the culprit, altho I dont have any lites lit in my dash.. Wheremight i find the IAC valve..?? Is it near the TB on a z24 2002 and how much does one valve go for... are these things expensive ..???

thanks you guys

[Young Chuck D]

Originally Posted by z24forlife

...how much does one valve go for... are these things expensive ..???

thanks you guys

they're relatively cheap... at least on 2nd gens..


check your local parts store or sites like www.autozone.com or www.advanceautoparts.com

[z24forlife]

Well ok... looks like the problem was the spark plugs... I put original ones back in.. AC delco's Iradiums.. and, now sounds like the car is going great...

Ill drive it for couple of days and let you guys know...

thanks yall guys

[dominoid8]

I have a 1994 chevrolet cavalier rs (2.2 liter)4Cyl automatic. I drove about 200 miles the other day and my temperature gauge was worrying me,going over the middle line. I got a full reservoir of anti-freeze coolant and nothing is leaking which is usually a good thing. my cooling fan doesn't seem to kick on like it used to last summer. I know it works because i've played with it enough to know. I pulled the drain plug on my radiator and nothing would come out. I'm thinking that maybe i used too much stop leak last summer when i thought the radiator was leaking and turned out to be the water pump in which i did replace it. what can i do to unclog it? does anyone know? could i use a air pressure hose or something?

[Blue Bowtie]

Compressed air will likely unclog the cooling system, but unfortunately, unclog it in several places at once, like the heater core, water pump seal, radiator, and possibly the head gasket. The system is designed to operate at 14-16 PSIG, and any more pressure than that can blow the tanks off the ends of the radiator core, burst the heater core, and do all sorts of other damage. The only acceptable sealants are the clay tablets intended to seal gasket areas, and even those are a bit suspect.

"Stop Leak" products are made for one purpose - To sell to unsuspecting buyers. If they will close a leak the size of a nail, just imagine what they can do to the small passages in radiator tubes and such.

Your best solution would be to remove the radiator and tank it to clean it out. Then consider a complete cooling system flush to attempt to clean out everything else.