Will engine prob trip check engine light?
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Senior User
Joined: Aug 2003
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From: MA
Will engine prob trip check engine light?
Lately, I've noticed a hesitation or skipping on moderate to heavy acceleration. Will an engine problem trip the idiot light, or will it just store a code? I would have thought that there were particular tolerances the engine would perform under (coil pack, fuel filter, etc) and when it falls outside of those parameters, something would trip a warning (?). I'm going to bring it to my mechanic and see if it kicks any codes, but wanted to be an informed consumer beforehand.
As always, help is much appreciated.
As always, help is much appreciated.
Logistics Pro
Joined: Oct 2000
Posts: 3,960
Likes: 5
From: All over Texas
The system is always scanning for problems. It is my understanding that in order for the light to illuminate, the problem must be detected through several scan cycles. If you're light is not on, there shouldn't be any codes.
New User
Joined: Sep 2006
Posts: 1
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99 ford explorer has hesitation too
My 99 has hesitation AND the check Engine light came on......im thinking it's the timeing. Will have a mechanic check it out this week.
Hesitation could be caused by.......water (condensation) in the fuel line or filter....ADD some HEET and it should take care of it....or of course timeing, or related item. take care
Hesitation could be caused by.......water (condensation) in the fuel line or filter....ADD some HEET and it should take care of it....or of course timeing, or related item. take care
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
Boracay...Your timing is not the problem as it is not adjustable.
Hesitation is usually caused by misfires...which can, and under severe circumstances, WILL set the MIL. Under the most severe misfire (Type A), the MIL is an immediate flashing indicator.
Itis absolutely pointless to try to guess why a MIL is on. Go get the codes read and be SURE why it's on.
Auto parts stores offer free scanning. Go there, have it scanned, WRITE DOWN THE EXACT CODES (not the descriptions), then come back here for assistance (unless you want to just let the mechanic do it. Be advised that if your vehicle is a 2004 or newer, the scan tool must be a new style called a CAN-protocol. Most autoparts stores have not yet upgraded their scan tools.
Steve
Hesitation is usually caused by misfires...which can, and under severe circumstances, WILL set the MIL. Under the most severe misfire (Type A), the MIL is an immediate flashing indicator.
Itis absolutely pointless to try to guess why a MIL is on. Go get the codes read and be SURE why it's on.
Auto parts stores offer free scanning. Go there, have it scanned, WRITE DOWN THE EXACT CODES (not the descriptions), then come back here for assistance (unless you want to just let the mechanic do it. Be advised that if your vehicle is a 2004 or newer, the scan tool must be a new style called a CAN-protocol. Most autoparts stores have not yet upgraded their scan tools.
Steve
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