Reply With QuoteIf the engine is carbureted, it's probably the auxiliary
acceleration pump diaphragm. The AAP is located on the side
of the carb, has a plate with 3 screws and a vacuum line.
When the engine warms up to operating temp, vacuum is
applied to the AAP. If the AAP diaphragm has a hole in it
(pin holes happen on older carbs), then gas gets sucked
into the vacuum system, causing rough and smoky idling.
It's an easy and cheap fix...
Brad
"Tyedboyne" <comdeadspam> wrote in message news:aol.com...
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Toyota Trucks: '04 Tacoma Fuel Pump Inertia Switch Location?
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- 02-05 06:20 PM #1aeropalGuest
'04 Tacoma Fuel Pump Inertia Switch Location?
Where is the fuel pump inertia switch located on a 2004 Tacoma?
Figure 4-14 of this PDF indicates a floor pan location in the brake
pedal area, but no succcess in finding it so far.
http://www.autoshop101.com/forms/h42.pdf
- 02-06 03:21 AM #2BGuest
Re: R-22 idle problem
- 02-10 04:54 AM #3aeropalGuest
Re: '04 Tacoma Fuel Pump Inertia Switch Location?
Answering my own question:
Have been advised by a Toyota technician that this model does not have
a fuel pump inertia switch. This National Highway Traffic Safety
Administration docket indicates there is another option.
http://www.nhtsa.dot.gov/cars/rules/rulings/301NPRM/Index.html#N_5_
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