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View Full Version : 87 irocz not running right..

Kid Racer
03-14-2009, 09:16 PM
Hey guys a better ? yet. I have an 87 irocz 5.7 .. When I am driving the car for a while it will start to idle really rough, and it trys to shut off when you come to a stop light.. Thanks for any help..
deadtrend1
03-15-2009, 06:56 AM
sorry to hear. I would take care of that so it doesn't stall out on you.
Kid Racer
03-15-2009, 10:30 AM
I would like to fix it. But I dont know what it could be..
sweetbmxrider
03-15-2009, 11:16 AM
can you explain a little more. you are very brief in your post. diagnosing through the interweb is very difficult with 1 sentence.
deadtrend1
03-15-2009, 11:53 AM
can you explain a little more. you are very brief in your post. diagnosing through the interweb is very difficult with 1 sentence.

not to mention the lack of the question, or connection to the ESC in the title
LTb1ow
03-15-2009, 11:57 AM
Wouldn't an 87 = carb ?
deadtrend1
03-15-2009, 12:00 PM
Wouldn't an 87 = carb ?

87's were available with carbed 305's, tpi 305/350 and mpfi 2.8's
Kid Racer
03-15-2009, 04:13 PM
Okay let me see here after driving the car for awhile it will start to run really rough.. When I come to a stop light or a sing it will try to shut off, and when I go to take off it bogs a little bit and spits and stutters.. It will happen after driving the car for an hour or longer.. The "esc module" was another ? that I couldn't find on the Internet and then I found it so I figured instead of making a new post I would just use this post.. Sorry about that.
Tru2Chevy
03-15-2009, 07:35 PM
The "esc module" was another ? that I couldn't find on the Internet and then I found it so I figured instead of making a new post I would just use this post.. Sorry about that.

I edited the title for you, but please do not do that in the future. If you have a thread here asking a question, it is a good practice to post up the answer you found (if found elsewhere) in that thread so that users with the same or similar problems can use that information to help themselves when searching.

Please do not just edit a post with a completely new and un-related question, just start a new thread.

Thanks.

- Justin
Kid Racer
03-15-2009, 08:34 PM
Okay.. I'll remeber that for next time thanks... But for the problems with the camaro that is the best way I can explain the the problems.. The car has new spark plugs, wirers, cap, and rotor button.. So I don't know what it could be.. I was thinking the esc module but I read on line some where that it controls the knock senor, and the page said what happens when it goes bad and to me it didn't seem like the problem that I am having.. So someone else told me it could be my feul filter so I put a new one on it and it didn't help.. So know im stuck and don't know were to go..
madness410
03-15-2009, 09:07 PM
is the fuel pump stock? when was the last time you changed your fuel filters?
Kid Racer
03-16-2009, 08:43 AM
i just put one on it.and yes the pump is stock but it works fine tho
Kid Racer
03-17-2009, 10:53 AM
Anyone.
98tadriver
03-17-2009, 11:06 AM
how long is a while? long enough to let the car come up to operating temperature?
Kid Racer
03-17-2009, 01:33 PM
Okay let me see here after driving the car for awhile it will start to run really rough.. When I come to a stop light or a sing it will try to shut off, and when I go to take off it bogs a little bit and spits and stutters.. It will happen after driving the car for an hour or longer.. The "esc module" was another ? that I couldn't find on the Internet and then I found it so I figured instead of making a new post I would just use this post.. Sorry about that.



Just to catch you up to date ron. Thanks for being interested in this ron. I could really use your help on it.
98tadriver
03-17-2009, 04:53 PM
hmmmm, im no 3rd gen f-body guru or anything but ill think of some stuff.

is it carbed? maybe the choke sticks?

maybe your EVAP or egr stuff isnt working
sweetbmxrider
03-17-2009, 06:32 PM
when it stalls, can you restart immediately?
Kid Racer
03-17-2009, 08:37 PM
yes i can restart it immediately
Kid Racer
03-22-2009, 02:45 PM
Is there anything I can do
Batman
03-22-2009, 03:17 PM
Climb under and tap on your catalytic converter (lightly!) to see if it rattles. Could be a plugged Cat.
Kid Racer
03-22-2009, 08:40 PM
there is no cat on it
Jersyboyy
03-22-2009, 08:48 PM
What motor is in that car carbed tpi or 2.8?
Kid Racer
03-23-2009, 09:25 AM
tpi 5.7
DevilDougWS6
03-25-2009, 01:09 AM
vacuum lines? does it overheat? pull out your plugs and post up pictures. after driving for an hour......could probably be junk in your fuel tank clogging up the sock, or even filter.

do these have the same in-tank pump as 4th gens? if so you may need to drop your tank and check your fuel pick-up sock. and scrub out your tank.
NJSPEEDER
03-25-2009, 10:30 PM
I.A.C. is prolly either gummed up or dead. Pull the TB off and clean it up really good.
DevilDougWS6
03-25-2009, 10:48 PM
yeah get some electric parts cleaner and take the intake and TB apart and clean it out.
Batman
03-27-2009, 10:29 AM
IAC was going to be my next guess....:p
91chevywt
03-27-2009, 11:03 AM
Does it happen all the time? Or only when the engine gets warmed up?

If it only happens when the engine is warmed up, it could be the o2 sensor. It will cause that exact problem. If the sensor is reading lean once the engine gets warmed up (switches to closed loop operation) it will richen it up even though it's not necessary, causing a rough running condition, an idle surge, or even a stall.
Kid Racer
03-27-2009, 07:46 PM
1. I clean the I.A.C with carb cleaner... 2. The o2 sincor is not hooked up.. I didn't think it was that cause this problem just started to happin about 2 months ago.. I didn't hook it up cause when I pulled the motor out and put it back in I couldn't find the wire that comes from the wiring harness to hook it to the wire on the o2... But I will try and find it and see what it does... But no the car doesn't always do it.. It only does it sometimes.. Like one day it might do it after driving it for an hr or so and then it may not do it for a few days to a few weeks it all dapends on when it wants to I geuss...
BigAls87Z28
03-27-2009, 11:30 PM
Are you getting a SES light on at all? If you had your 02 sensor disconnected, as soon as you went closed loop, the light would pop on as it would be getting ZERO readings.
If you have an SES light on, it should give us a bit of a window as to what is going on.
I would try to figure out where that O2 sensor wire went, and plug that back in. Should be a purple wire on the driver side near the head. Its a simple one wire connection.
Not having your O2 hooked up would send the computer into limp home mode. I would then check your plugs because you most likely are spitting fuel into the engine, fouling the plugs.
If you are getting no SES light, which is odd since you do not have the O2 hooked up, then its something totally else.
Does it smooth out and drive ok once you crusing? It only spits and spudders when you are at a stop? Sounds like you have a fuel/air problem.

and ROFLCOPTER to 87 = Carb comments.
Tru2Chevy
03-28-2009, 09:07 PM
and ROFLCOPTER to 87 = Carb comments.

My '87 came from the factory with a carb..... :nod:



- Justin
BigAls87Z28
03-29-2009, 02:07 PM
Yeah, but its the only engine that did....
V6, and the top V8's had EFI. But 87 doesnt automaticly mean Carb. Thats my comment.
myfoot2020
04-03-2009, 08:28 PM
my 92 would run like crap after sitting during the winter, dry gas and fresh fuel cleared things up in a tank or two. might be water in the fuel?