low idle?

flyin_hawaiian · 11-06-2009, 03:21 AM

i have a 86 4a-ge with 114k miles on it and when i start it up in the morning it warms up fine (around 2100 rpm) but as the day progresses and as the engine heats up, the idle drops to below 1000 (today it was at its lowest at 600 RPM!)

This is a problem for me because i need to add a lot of gas before i can start releasing my clutch if i dont want my car to stall.

any help or suggestions is greatly appreciated.

traintech86 · 11-06-2009, 04:40 AM

well the stock idle is at 800(says the sticker on the engine bonet). some comon things i have heard is that intake leaks can cause this. a temp fix would be to turn the idle up, but you really should investigate why and not just cover up the symptoms.

welcome and nice 2 btw

mr3 · 11-06-2009, 08:11 AM

That's not too bad. If my car isn't warmed up completely it will idle at 400 rpms maybe a little lower. Everyone who sees it doesn't believe that the car is able to do it but it does. I have pics to prove it if you don't believe. Haha

lsgheero · 11-06-2009, 09:05 AM

thats nuts lol, my car feels like it is about to die at anything below 1k lol. but I also have afm cams... so this could be why.

flyin_hawaiian · 11-06-2009, 01:46 PM

Quote:

Originally Posted by lsgheero

thats nuts lol, my car feels like it is about to die at anything below 1k lol. but I also have afm cams... so this could be why.

yea my car feels like that too and it does die out sometimes without adding more gas. and everything in my car is stock.

the car doesnt ride smooth too at low speeds (ex: driving through a parking structure.)

ill do a little more diagnosing and see if i can find anymore symptoms.

i appreciate your help guys.

lsgheero · 11-06-2009, 02:02 PM

May want to check/adjust the tps as well.

11-06-2009, 03:21 AM	#1 (permalink)
flyin_hawaiian No Skills Join Date: Nov 2009 Location: Hawaii Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	low idle? i have a 86 4a-ge with 114k miles on it and when i start it up in the morning it warms up fine (around 2100 rpm) but as the day progresses and as the engine heats up, the idle drops to below 1000 (today it was at its lowest at 600 RPM!) This is a problem for me because i need to add a lot of gas before i can start releasing my clutch if i dont want my car to stall. any help or suggestions is greatly appreciated.

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11-06-2009, 04:40 AM	#2 (permalink)
traintech86 Traintech86 on all im's Join Date: May 2009 Location: Norfolk VA Posts: 920 Thanks: 14 Thanked 25 Times in 24 Posts My Google Map iTrader Rating: (2/100% )	well the stock idle is at 800(says the sticker on the engine bonet). some comon things i have heard is that intake leaks can cause this. a temp fix would be to turn the idle up, but you really should investigate why and not just cover up the symptoms. welcome and nice 2 btw

11-06-2009, 08:11 AM	#3 (permalink)
mr3 Cage Fighter Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 848 Thanks: 19 Thanked 26 Times in 25 Posts iTrader Rating: (2/100% )	That's not too bad. If my car isn't warmed up completely it will idle at 400 rpms maybe a little lower. Everyone who sees it doesn't believe that the car is able to do it but it does. I have pics to prove it if you don't believe. Haha

11-06-2009, 09:05 AM	#4 (permalink)
lsgheero RAR! Join Date: Feb 2007 Location: Arizona Posts: 613 Thanks: 7 Thanked 27 Times in 27 Posts My Google Map iTrader Rating: (1/100% )	thats nuts lol, my car feels like it is about to die at anything below 1k lol. but I also have afm cams... so this could be why.

11-06-2009, 02:02 PM	#6 (permalink)
lsgheero RAR! Join Date: Feb 2007 Location: Arizona Posts: 613 Thanks: 7 Thanked 27 Times in 27 Posts My Google Map iTrader Rating: (1/100% )	May want to check/adjust the tps as well.