This is topic hesitation at WOT in forum Tech Talk at Northern California Ford Owners  .


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Posted by KCmustangboy (Member # 1927) on :
 
98 cobra, So whenever you go WOT, and put the motor under load, as in being at like 2000rpms in 5th gear and then flooring it. The car slowly accelerates which is normal, I should downshift... However I can feel a lot of hesitation in the motor, like it's missing a little. Anything help is great. Sorry guys I know these are mostly dumb questions but I am totally knew to the 4.6 platform and learning on the 4v I just got. It has the stock 1998 spark plug wires lol... hopefully changing them helps.
 
Posted by 93 twintrbo (Member # 10475) on :
 
Do you have a check engine light on?

It sounds like you are describing a misfire condition. I believe your car uses two group coils? Anyhow, if it is only misfiring under load. It is most likely spark plug related or faulty ignition wires. The easiest thing to replace is the spark plugs. Make sure to not touch the porcelain and inspect it for carbon tracking. If you see carbon tracking, you may want to replace the wires. I always prefer to use OEM motorcraft ignition components, but other may do the job.

Lawrence
 
Posted by KCmustangboy (Member # 1927) on :
 
quote:
Originally posted by 93 twintrbo:
Do you have a check engine light on?

It sounds like you are describing a misfire condition. I believe your car uses two group coils? Anyhow, if it is only misfiring under load. It is most likely spark plug related or faulty ignition wires. The easiest thing to replace is the spark plugs. Make sure to not touch the porcelain and inspect it for carbon tracking. If you see carbon tracking, you may want to replace the wires. I always prefer to use OEM motorcraft ignition components, but other may do the job.

Lawrence
Thanks, I'll do the plugs and wires and see if it clears up this weekend.
 
Posted by autumnstang97 (Member # 6111) on :
 
I had that problem on my 97, I did the plugs and wires and ran like new
 
Posted by KCmustangboy (Member # 1927) on :
 
Plugs and Wires and all better.... still have my idle problem at 1800
 
Posted by autumnstang97 (Member # 6111) on :
 
Coil packs maybe...
 
Posted by autumnstang97 (Member # 6111) on :
 
Disregard my post above....I thought u still had the initial problem...vacuum maybe?
 




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