ZacksZ34 Posted September 10, 2008 Report Posted September 10, 2008 I need help figuring out why my car is idling so high!!!!! Today it was the worst i has ever been on my way to work i notice my temp gauge was dangeruosly high when i stopped and put it in park it was idling aroun 3000rpm it usually does it aroun 2000rpm. and then it will idle around 1000rpm which is on the safe side!!!! Can someone help me figure out whats wrong with it!!!! Also when its running and in park after a few minutes my check enigne light will come on and idk whats up with that either!!!!! Quote
oldscsc Posted September 10, 2008 Report Posted September 10, 2008 Someone will tell you to check the codes first, otherwise I'd guess idle control sensor. Quote
ManicMechanic Posted September 10, 2008 Report Posted September 10, 2008 I'm thinking LIM gaskets, perhaps... Quote
ZacksZ34 Posted September 10, 2008 Author Report Posted September 10, 2008 I'm thinking LIM gaskets, perhaps... LIM ?????? Quote
ZacksZ34 Posted September 10, 2008 Author Report Posted September 10, 2008 Someone will tell you to check the codes first, otherwise I'd guess idle control sensor. okay ill have em checked Quote
jeremy Posted September 10, 2008 Report Posted September 10, 2008 I'm thinking LIM gaskets, perhaps... LIM ?????? Lower Intake Manifold Quote
ZacksZ34 Posted September 10, 2008 Author Report Posted September 10, 2008 thats what i thought but wasn't sure Quote
88red4cyl Posted September 10, 2008 Report Posted September 10, 2008 I'm thinking LIM gaskets, perhaps... Just for my own personal knowledge.. If the LIM gasket was bad, he would be losing coolant too, correct? Quote
ManicMechanic Posted September 10, 2008 Report Posted September 10, 2008 Said his temp gauge went up... My LIM gaskets didn't make me lose coolant...The idle just SUCKED and it got 10 MPGs... Quote
ZacksZ34 Posted September 10, 2008 Author Report Posted September 10, 2008 Said his temp gauge went up... My LIM gaskets didn't make me lose coolant...The idle just SUCKED and it got 10 MPGs... well my cars gettin good gas milage for all the more its driven a full tank will last me almost 2 weeks and im not losing coolent Quote
mediabandit Posted September 10, 2008 Report Posted September 10, 2008 Said his temp gauge went up... My LIM gaskets didn't make me lose coolant...The idle just SUCKED and it got 10 MPGs... well my cars gettin good gas milage for all the more its driven a full tank will last me almost 2 weeks and im not losing coolent Antony? Quote
slick Posted September 10, 2008 Report Posted September 10, 2008 Car running, spray some MAF or throttle body cleaner around the upper and lower intake manifold gaskets. Any change in idle is a good indication of bad gaskets. That doesn't work, start spraying your vacuum lines. Again, any change in idle, there's your problem. Get back to us. Oh, and check your codes. Requires a paper clip and 5 minutes of your time. Quote
oldscsc Posted September 10, 2008 Report Posted September 10, 2008 Oh, and check your codes. Requires a paper clip and 5 minutes of your time. Told ya Quote
ManicMechanic Posted September 10, 2008 Report Posted September 10, 2008 Yeah, unlike our '94s that need specialized equipment with a turbocharged butt wiper to check the codes... Quote
ZacksZ34 Posted September 10, 2008 Author Report Posted September 10, 2008 Said his temp gauge went up... My LIM gaskets didn't make me lose coolant...The idle just SUCKED and it got 10 MPGs... well my cars gettin good gas milage for all the more its driven a full tank will last me almost 2 weeks and im not losing coolent Antony? i drive to work which is about 7 miles from my house and ill go to town at least once a week and i go to my friends house which is about 10miles from home so yeah i get good gas mileage maybe well id say about a lil over week then ill fill her up Quote
AL Posted September 10, 2008 Report Posted September 10, 2008 my car idled high for a while and it was because this hose came loose Quote
ZacksZ34 Posted September 10, 2008 Author Report Posted September 10, 2008 my car idled high for a while and it was because this hose came loose mine still on there just idk if its sealing correctly Quote
Night Fury Posted September 10, 2008 Report Posted September 10, 2008 FWIW, time is NOT a good indication as to how good your mileage is. When you fill it up, reset the trip ODO!!!! Quote
ZacksZ34 Posted September 10, 2008 Author Report Posted September 10, 2008 Well the cars goin to the garage first thing in the morning to hook it up to the computer to find out whats wrong Quote
carkhz316 Posted September 10, 2008 Report Posted September 10, 2008 my car idled high for a while and it was because this hose came loose mine still on there just idk if its sealing correctly This *shouldn't* cause a high idle issue due to a vacuum leak due to that it's not being pulled by manifold vacuum. I could only see this on a (correct me if I'm wrong) 94+ vehicle with MAF, and not speed density system alone. If equipped with a MAF sensor, a leak there would cause a unmetered air intake, causing a lean condition, leading to a high idle, but I don't think that's your case, because your car is a 91? 92? Anyway, there is at least one more small rigid plastic vacuum line running along the firewall from your MAP area, which I found to have rubbed a hole in on my silver Z, which caused a slew of problems (higher, erratic idle; no cruise and HVAC control switching. Look around for more vacuum hoses/ leaks and follow all the other guy's/girls advice on here, because everyone is going in the right direction with this. Quote
Crazy K Posted September 10, 2008 Report Posted September 10, 2008 Are you aware... that your car can be code checked with a PAPERCLIP? IS THE CHECK ENGINE LIGHT ON? Quote
ZacksZ34 Posted September 10, 2008 Author Report Posted September 10, 2008 Are you aware... that your car can be code checked with a PAPERCLIP? IS THE CHECK ENGINE LIGHT ON? it comes on after 5minutes of running in park!!!! And i dont know shit about these cars and everytime i post a thread askin about em i get bitched at for posting!!!!!!! saying its useless Quote
AL Posted September 10, 2008 Report Posted September 10, 2008 my car idled high for a while and it was because this hose came loose mine still on there just idk if its sealing correctly This *shouldn't* cause a high idle issue due to a vacuum leak due to that it's not being pulled by manifold vacuum. I could only see this on a (correct me if I'm wrong) 94+ vehicle with MAF, and not speed density system alone. If equipped with a MAF sensor, a leak there would cause a unmetered air intake, causing a lean condition, leading to a high idle, but I don't think that's your case, because your car is a 91? 92? Anyway, there is at least one more small rigid plastic vacuum line running along the firewall from your MAP area, which I found to have rubbed a hole in on my silver Z, which caused a slew of problems (higher, erratic idle; no cruise and HVAC control switching. Look around for more vacuum hoses/ leaks and follow all the other guy's/girls advice on here, because everyone is going in the right direction with this. the car pictured is a 93... that hose connects all the way around to here so it still might have an effect... your SES light will say that you have a high idle and thats it... happened to me also Quote
88red4cyl Posted September 10, 2008 Report Posted September 10, 2008 Are you aware... that your car can be code checked with a PAPERCLIP? IS THE CHECK ENGINE LIGHT ON? And i dont know shit about these cars and everytime i post a thread askin about em i get bitched at for posting!!!!!!! saying its useless It was mentioned on the previous page that codes can be checked with a paperclip.. And a brief glance through the F.A.Q. section turns up this thread about checking the SES light... http://www.w-body.com/forum/index.php?topic=31177.0 Quote
Crazy K Posted September 10, 2008 Report Posted September 10, 2008 DO WHAT THAT SAYS... AND THEN GET BACK TO US!!!! DO NOT POST ANY FURTHER UNTIL YOU HAVE DONE THE ABOVE!!!!!! TELL US WHAT CODES YOU GET SO WE CAN HELP YOU. Running around like Chicken little with your ^$(!*#&( head cut off doesn't help. get us a SOLID result and we'll do what we can to help! Quote
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