Random 302 Stalling/dying?! HELP

White1987GT

Member

Jun 17, 2011

32

0

16

New Jersey

Jul 10, 2011

#1

• Jul 10, 2011

• #1

I have an 87 GT, I replaced all sparkplugs and use premium gas, once I start the car for the first time that day, it runs fine, but yesterday for example I got gas and started the car back up, the RPM's pulsed a little then the car died on it's own, this has happened before, any idea on what it could be? Please help!

 

bentley429isBAC

10 Year Member

Jul 23, 2009

922

188

84

CT

Jul 10, 2011

#2

• Jul 10, 2011

• #2

About 10000 things it could be. Give more info.

 

Beasty306GT

Active Member

Dec 19, 2002

671

4

28

Oxford,Mass

Jul 10, 2011

#3

• Jul 10, 2011

• #3

could be the vss sensor..but could be anything

 

90mustangGT

I felt sorry for girls because

Founding Member

Jan 15, 2002

2,773

17

89

Dallas, GA

Jul 10, 2011

#4

• Jul 10, 2011

• #4

Well, sounds like either fuel or spark. Try to figure out which is missing.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,160

17,854

224

Massachusetts

Jul 10, 2011

#5

• Jul 10, 2011

• #5

Run the codes. About the only thing we can offer up as a starting point...otherwise we'll be here all day.

If it started after the plug change, perhaps a plug wire is loose, or the plug gap is incorrect. What plugs did ypu install? Hopefully not platinum.

You don't need premium gas if your timing is stock and engine is basically stock. Premium gas is not premium...that's a marketing term. You'll make more power on a stockish setup with 87 octane. Dont buy into the hype.