Grandpa's 86 update
Thread Starter
Intermediate
Joined: Aug 2003
Posts: 33
Likes: 1
From: Mukilteo WA
Grandpa's 86 update HELP!
I need to explain further what she was doing, A gentle exceleration on my way home would be fine and she would go through the rpm range fine but when I put my foot into her she would rev up and down quickly. When I got it home though she wouldn't idle or if she did it was rough. WHile sitting I tried to put some throttle into her and she died. I started her up and put her in gear, the throttle was non-responsive she just chugged and idled rough. I put about 3/4 throttle into her and she finaly surged forward after backfiring a couple times. I hit the brakes and she idled fine even after I put her in park she idled like nothing was wrong. So I turned her off and fired her back up, she ran crappy again, almost like my ford. The Mechanic is comming today to take a look at her, any ideas out there what I can say to him, or can I fix it myself?
My baby is sick! Help! :sad:
[Modified by ChristineII, 6:16 PM 4/27/2004]
My baby is sick! Help! :sad:
[Modified by ChristineII, 6:16 PM 4/27/2004]
Thread Starter
Intermediate
Joined: Aug 2003
Posts: 33
Likes: 1
From: Mukilteo WA
Re: Grandpa's 86 update HELP! (ChristineII)
Also if it helps I had the exhaust from the cats back replaced three years ago and the repair shop said the cats are good, Can they go out in three years with minimal driving? :confused:
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Re: Grandpa's 86 update HELP! (Wheelman)
First thing is to check to see if there are any error codes stored in the ECM.
If there are none, you need to check the fuel and ignition systems.
You need to check that the fuel pump is continually operating, that the fuel filter isn't clogged; that the fuel pressure is correct; that all the injectors are firing.
I'd siphon out all the old gas and pump in fresh premium gasoline. I'd add some RedLine injector cleaner to the fresh gas. Your problem could well be traced to the old gasoline in the tank and, perhaps, the effect it and the fuel stabilizer had on the fuel filter/injectors.
I'd pull all the spark plugs and check them; better yet, install a new, properly gapped set.
Beyond that, you're going to need a ScanTool, AutoXray, Diacom or some other program that can give you real-time data of the activity of all the sensors.
It could one or more sensors are out of spec, bad MAF, 02 sensor, etc. Rather than just throw parts at the problem (not knowing if the part really needs replacing) getting your hands on one of the diagnostic tools is the way to go.
Keep us posted.
Jake
If there are none, you need to check the fuel and ignition systems.
You need to check that the fuel pump is continually operating, that the fuel filter isn't clogged; that the fuel pressure is correct; that all the injectors are firing.
I'd siphon out all the old gas and pump in fresh premium gasoline. I'd add some RedLine injector cleaner to the fresh gas. Your problem could well be traced to the old gasoline in the tank and, perhaps, the effect it and the fuel stabilizer had on the fuel filter/injectors.
I'd pull all the spark plugs and check them; better yet, install a new, properly gapped set.
Beyond that, you're going to need a ScanTool, AutoXray, Diacom or some other program that can give you real-time data of the activity of all the sensors.
It could one or more sensors are out of spec, bad MAF, 02 sensor, etc. Rather than just throw parts at the problem (not knowing if the part really needs replacing) getting your hands on one of the diagnostic tools is the way to go.
Keep us posted.
Jake
