idling

hey guys, sorry I haven't posted in a while, been really busy with work and what not. But i noticed this a few months back, and it stopped, but started up again the other day. Lately, whenever I put my car in park, the rpm drops down to like 200-300 almost stalls out, jumps back up to around 800 or so, drops back down to 300, then it'll idle normally.. it's stalled out a couple of times like that, I had this problem on an older car, and it ended up being a bad wiring harness, but any suggestions would be awesome.

That's odd... I have the same problem, though mine only dips down a couple hundred from norm. Started when I changed my idle RPM values in the PCM, so thought that was it. I really don't know what is causing it. Anyone else have this happen?

it's been running like crap lately, really hesitant on acceleration, i'm fearing the worst

How many miles on the car? When's the last time you changed plugs, wires, air filter, fuel filter?

air filter is brand new, the engine supposedly has around 18-20k miles on it, the guy told me he bought it wholesale, but i'm not sure if I believe him.. plugs wires and fuel filter, I have no idea, I haven't had the car for that long

how bout them buckeyes aa

RhinoFLA wrote:

hey guys, sorry I haven't posted in a while...

Dang, You think! Thought you sold your ride.
I'd start with plugs, plug wires and fuel filter. That should
eliminate a big part of the problem. I'd SeaFoam your car too. It made
a huge difference on the way my riv performed.

RhinoFLA wrote:

hey guys, sorry I haven't posted in a while, been really busy with work and what not. But i noticed this a few months back, and it stopped, but started up again the other day. Lately, whenever I put my car in park, the rpm drops down to like 200-300 almost stalls out, jumps back up to around 800 or so, drops back down to 300, then it'll idle normally.. it's stalled out a couple of times like that, I had this problem on an older car, and it ended up being a bad wiring harness, but any suggestions would be awesome.

i have a similar problem. Mine has stalled once or tiwce now while going from reverse to drive for no appearent reason. It was warmed up and everything. It has 157k mi on it so I kind of expect that. Everything seems ok on the engine. The wires have been replaced with bosch at some point before I owned it. I hope this small problem is reduced when I replace the spark plugs and do a motorvac on it.

dirty IAC?? cleaning the intake and using sea foam is always a good maint/fix for hessitation. do you ever get a CEL when it stalls?
mine would sometimes stall b/c of my bad CKP sensor (crankshaft positon) but i would also get a trac off light and other things would go wrong. i replaced it a month or 2 ago and its been fixed since.

Mr.Riviera wrote:

dirty IAC?? cleaning the intake and using sea foam is always a good maint/fix for hessitation. do you ever get a CEL when it stalls?
mine would sometimes stall b/c of my bad CKP sensor (crankshaft positon) but i would also get a trac off light and other things would go wrong. i replaced it a month or 2 ago and its been fixed since.

my MIL is always on because of my cam sensor (could that have caused it?) And my "T/C off" light will come on about 50% of the time i drive it for some reason. And I can't turn it back on with the button when this happens. Anyway that's not something I particularly care about. The motorvac i'm doing is basically the same this as the seafoam treatment. The solution is just a little bit more potent.

nope, no CEL, it just happens but yeah, definitely going to seafoam it, and change plugs and what not, i'm sure it's been quite some time lol I drove it earlier, and it only seems to happen when I put it in park after driving for a bit

turtleman wrote:

Mr.Riviera wrote:

dirty IAC?? cleaning the intake and using sea foam is always a good maint/fix for hessitation. do you ever get a CEL when it stalls?
mine would sometimes stall b/c of my bad CKP sensor (crankshaft positon) but i would also get a trac off light and other things would go wrong. i replaced it a month or 2 ago and its been fixed since.

my MIL is always on because of my cam sensor (could that have caused it?) And my "T/C off" light will come on about 50% of the time i drive it for some reason. And I can't turn it back on with the button when this happens. Anyway that's not something I particularly care about. The motorvac i'm doing is basically the same this as the seafoam treatment. The solution is just a little bit more potent.

CAM SENSOR guess what ur issue IS ELECTRICAL related Change the plugs and wires Again or reinstall them it worked tfor me

quote: "how bout them buckeyes aa"

Yeah, how bout that. They weren't droppin' and FL played well as usual. Oh well... This makes two Ryans on here who give me crap about the Bucks!

I hate to tell you to throw money at your car but, what about the coil packs? Coil packs can get flaky. I solved a 'shakey' idle with a new set of coil packs.

Quote :

Yeah, how bout that. frown They weren't droppin' and FL played well as usual. Oh well... This makes two Ryans on here who give me crap about the Bucks!

That's ok, I didn't want Florida to win either.

When it's cold I have the same problem with my Jeep, but sometimes it'll die when I'm driving and let off the gas. I thought it was the injectors, but it's been warmer here so it doesn't do it anymore and I don't worry about it.

urbsnspices wrote:

I hate to tell you to throw money at your car but, what about the coil packs? Coil packs can get flaky. I solved a 'shakey' idle with a new set of coil packs.

I agree w/ him. One of mine went at 135K and the other two probably need replacement too. Online they are only about 50 or 60 bucks plus shipping, so 3 could get pricey. You could try this as step 2 if the cheaper methods don't work. But they are about the easiest part to replace ever.

Does seafoam get put in before the MAF/IAC sensor? Pretty sure it doesnt, which means you have to clean that yourself.

you gota clean the front of the butterfly in the TB too. the sea foam is great, but you still need to pick up a can of TB cleaner and soak that intake down!!! pull the MAF and IAC and do those seperatly. the STP TB cleaner will not harm 02 sensors. so spray away.

so many suggestions, so little money.. haha no, ty all, it's reassuring to not hear anything too serious.. I'll probably start with the plugs and wires, then do the coil packs. And aaron.. maybe next year man :/

Save the coil packs for last. Most spendy and probably not the problem.

way to save me cash man

Be sure to check out the thread for SeaFoam. It's a lil scary first time you do it. Your car will smoke like something out of a Cheech and Chong movie, but nothin' to worry about. It's fairly easy to reach the plug wires too, so don't pay anyone to do it. Hell, if I can do it, anyone can.

lol, it'll be amusing.. some 19 year old long haired skater driving around in a car that's filling up with smoke.. police anyone? :/ and how do you space the plugs, when you change them? is there a tool for it?

She'll only smoke for a few minutes. Hemp odors not included. no worries with the law. Plugs are pre-gapped but I would definately check them. Gap tool is like a buck at AutoZone.