Question about 2004 Toyota Sequoia

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Ford falcon not idling properly change the sparks and still the same

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  • Toyota Master
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Define properly? (too high/low. or surges or/)?
hot or cold engine or both?
idle is last thing to work,
all else must be good.
the ECU controls idle at all time (not in limphome mode)
all gross misfire causes, idle to fall and los e control
same with lean or flooding. lost control
the ECU/pcm works very hard to keep idle right using its slave ISC.
did you connect a scan tool and scan for errors?

if the scan tool shows AFR perfect in closed loop at idle hot.
then the ISC is stuck.
AFR is perfect air fuel ratio mixture that all EFI do,.

if engine stalls, make sure the EGR does not stick open

Posted on Feb 19, 2014

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1 Answer

My 65 mustang stalls whenever i stop then it starts right back up


Hello Larry,

Without the car running... You should be able to open
the throttle.. and literally DROP it back to idle...

Observe the action of the THROTTLE RETURN
DASH-POT
T should visibly SLOW the RETURN
of the throttle linkage like a door closer...

If you do not SEE the slowess... the dashpot
should be replaced (they are getting SCARCE).

SIX CYLINDER (EXAMPLE (only))
http://www.ebay.com/itm/NORS-65-67-MUSTANG-64-67-MERCURY-COMET-FORD-FAIRLANE-FALCON-DASH-POT-C2DZ9B549A-/142309387430?hash=item21224ceca6:g:kE8AAOSwo4pYmKnd&vxp=mtr


You will need to have the THROTTLE RETURN DASH-POT
on your (unspecified) carburetor
tested and adjusted... and the IDLE SPEED correctly set.

Idle Speed and a slow rate of RPM reduction is
critical to the proper function...

Some LESSOR "mechanics" will attempt to raise the
IDLE SPEED to compensate for a malfunctioning
DASHPOT... This will PROFOUNDLY exacerbate
the problem.

Throttle return dashpot (various pictures)
Go to Bing homepage

example DASHPOT (six cylinder)
NORS 65 67 MUSTANG 64 67 MERCURY COMET FORD FAIRLANE FALCON DASH POT...

example 1968 302/5.0L: Falcon, Mustang 2BBL carb
Carter 202 737 Carburetor Dashpot Ford 2 BBL Carburetors Replaces D7ZZ...

Hope this helps

Carnac the Magnificent

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1 Answer

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