car runs like crap....help!!!

S

solfast

New Member

Apr 27, 2003

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louisville,ky

Apr 3, 2004

#1

• Apr 3, 2004

• #1

'88 5.0L with speed density

runs great when warmed up, but when cold it sputters and misses. even after a warm start-up it does the same thing. runs fine after about 3 minutes but seems to run rich. if i throw the hammer down, i get a big puff of black smoke out the back and it sounds like a can of rocks under the hood. i think i have checked everything, but still doing the same thing. any ideas on what to check or has anyone had any of these problems?

thanks i advance...brian

 

66 Tiger

New Member

Jul 13, 2003

249

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Virginia

Apr 3, 2004

#2

• Apr 3, 2004

• #2

Have you checked the timing? That could be the culprit.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,215

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Massachusetts

Apr 3, 2004

#3

• Apr 3, 2004

• #3

Set timing to 10 degrees and then check the engine codes (there is no check engine light on speed density cars)

I bet your car is tossing out codes for the O2 sensors or/and the ECT sensor. A good cleanng of the EGR wouldn't hurt either.

 

9

9150ho

New Member

Mar 20, 2004

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Apr 3, 2004

#4

• Apr 3, 2004

• #4

is the vacuum line connected to your map? this vacuum line came off of my buddies speed density and caused it to run real rich and smoke.

 

S

solfast

New Member

Apr 27, 2003

9

0

0

louisville,ky

Apr 6, 2004

#5

• Apr 6, 2004

• #5

all very good points and i will check them asap. i just hope this doesn't turn into one of those things where i have to start throwing parts at it to see what fixes the problems. i'll keep you posted.

brian

 

jrichker

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Mar 10, 2000

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Dublin GA

Apr 7, 2004

#6

• Apr 7, 2004

• #6

Dump the codes and see what the computer says is wrong…

Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great.

See http://www.troublecodes.net/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/articles/electronics/eec-iv_codes.html

 

M

Mizark347

Member

Jan 21, 2004

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Detroit

Apr 7, 2004

#7

• Apr 7, 2004

• #7

My friend has the same exact problem with his 87. Im gonna check a couple things on it and i'll keep ya posted. Please do the same if you figure it out.

 

HaggardGT

New Member

Dec 16, 2003

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Tolland, CT

Apr 7, 2004

#8

• Apr 7, 2004

• #8

Make that 2 of us - my car did that before it had any of the internal work done, and most of that was done by a friend of mine so I don't know how he fixed it.