1987 Ford F-150 Repair Question
Mileage: 186,000 miles.
Truck wont start it is getting fire and fuel
Answer
is that a throttle body? did you try holding pedal to floor in case it's flooded? does it sputter at all?
does not sputter at all and yes it is a throttle body
SORTA 'SPLAIN HOW YOU TESTED FOR SPARK AND FUEL???.....please
THE MEDIC
listened to fuel pump and smell gas stuck screw driver in spark plug wire and held to metal and can see spark coming off the coil
JUST FOR GIGGLES LETS TRY IT LIKE THIS
(THE "OFF THE COIL" PART IS CONFUSING)
I TAKE IT THAT YOU PULLED THE SPARK PLUG WIRE OFF OF A SPARK PLUG, AND HAVE A WONDERFUL SNAPPING SPARK FROM THE ACTUAL SPARK PLUG WIRE.....NOT THE COIL WIRE OFF OF THE CENTER OF THE DISTRIBUTOR
IF YOU HAVE SPARK.......AT THE CORRECT TIME (PLUG WIRES, DISTRIBUTOR, AND TIMING HAVE NOT BEEN MONKEYED WITH, IN NO WAY)
COMPRESSIONWE'LL TEST THAT NEXT IF THE NEXT STUFF JUST AIN'T GETTING NO WHERE (ALL CYLINDERS WITH A COMPRESSION GAUGE, WRITE DOWN THE PSI FOR EACH CYLINDER)
FUEL?????.....YOUR FUEL TEST DOES NOT GIVE US A LOT TO GO ON
ABOVE ARE THE 3 THINGS NEEDED FOR A COMBUSTION ENGINE TO RUN.
LETS DO THIS NEXT, IT'S SIMPLE AND MAY TELL US WHAT'S MISSING
THIS TEST NEEDS TO BE DONE OUTDOORS--AWAY FROM THE HOUSE AND OTHER VEHICLES...AND A GOOD DEPENDABLE BUDDY, IF YOU NEED HELP
YOU NEED THE FOLLOWING ON HAND:
A BIG WET TOWEL---FOR AN EZ "SMOTHER" SHOULD A BACKFIRE AND SMALL FIRE OCCUR.....THROW THE TOWEL OVER IT!!!
A FIRE EXTINGUISHER (YES, A GOOD ONE) THIS IS SORTA YOUR BACK UP, IF THE TOWEL DOES NOT WORK!
BETTER SAFE, THAN SORRY
SIMPLEST THING TO TRY IS
PUT A FEW OUNCES OF FUEL INTO A SQUIRT BOTTLE/ A OIL SQUIRT CAN, ETC.....THE IDEA HERE IS TO BE ABLE TO "RING" THE THROTTLE BODY, WITHOUT GETTING YOURSELF SO CLOSE (WE WANT A STREAM OUT OF THE BOTTLE)
GIVE THE THROTTLE BODY, A FEW SQUIRTS AND HAVE YOUR BUDDY TURN IT OVER
............IS IT TRYING TO START???.......DOES IT START?
CAN YOU KEEP IT RUNNING WITH ADDITIONAL SQUIRTS OF FUEL?
OK---IF IT DID BUST OFF, EVEN FOR A FEW SECONDS---WE HAVE A FUEL DELIVERY PROBLEM
CHECK YOUR FUEL PRESSURE WITH A "REAL" GAUGE....A COUPLE OF TIMES
LET US KNOW WHAT YOUR FINDINGS ARE THUS FAR
THE MEDIC
ok will do thanks so much will get back to you tomorrow
Make sure the fuel pressure is within spec too. You may have a fuel pump that runs, but it may not produce enough or too much pressure.
are plugs WET? if not squirt some gas into TB and try.