|
Author
|
Topic: 1987 Mustang idles rough
|
P1mp1n
¯
Member # 1961
|
posted
 
 
Looking at buying this 1987 Mustang, when started it idles ok then after about 45 seconds at idle it begins to jump up and down then goes back to normal? Owner said its because its originally an automatic converted to a 5 speed, the computer was never swapped so the cars getting signals from an AOD trans?
Also noticed it revs high upon start up without gas pressure?
I'm guessing vaccume leaks?
Any info would be greatly appreciated, thanks
Posts: 887 | From: Burlingame | Registered: Oct 2002
| :
|
|
triple b
¯
Member # 8763
|
posted
Your not a mass air car so I believe the A9L/A9P issues are not your problem. Your car should be speed density and the issue could be you vaccine lines or map sensor
[ 2013-05-16, 11:09 AM: Message edited by: triple b ]
--------------------
1988 4cyl conv 306 HCI "sasha"
2004 tahoe
Sold- 87 GT, 72 chevelle, 63 biscane, 82 monte carlo, 73 nova, 88 silverado,
Posts: 1730 | From: sacramento ca | Registered: Nov 2008
| :
|
|
elsilerjr
¯
Member # 12811
|
posted
mine does this randomly not often but its a 87 Speed density and i have a vaccum leak its small and does not effect anything when driving, only at idle, never dies or anything.
Posts: 26 | From: Turlock | Registered: Apr 2013
| :
|
|
|
|
|
Email this post to someone!
Printer friendly view of this Ford topic
