Question about 1987 Ford F 150

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No fuel pressure/shutting off

Hi, I have a1987 f 150 302 cu in with aod trans ,dual fuel tanks. 110k miles.
I purchased it used and at first noticed it would shut off while driving sometimes being fine for 50 miles at other times it barely left the driveway. it would start back up usually after setting a couple of minutes, idle okay but bucking and stumbling , sometimes doing this for 10 mins. I replaced the ign module with a wells unit purchased at autozone. it seemed okay for awhile...... then started doing it again....Now a new problem.... the pumps will not energize after turning the key to the"on" position ( won't start), i repl the fuel pump relay and still no buzzing, no fuel pressure at the shrader valve..... the engine will run if you squirt fuel into throttle body.........HELP!

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Try putting a new fuel pump in it or check the fuel tank switching unit it might have failed. (switch or unit under truck).I would go under truck and try to isolate one tank both electricaly and mechanicaly the see how it runs.

Posted on Aug 20, 2008

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1989 ford f-150


If the fuel pump(s) run while the pressure is falling, replace the fuel pressure regulator and (although I'm sure you've already done this), replace the fuel filter. If the fuel pumps appear to be turning off by themselves, replace the inertia (fuel cutoff) switch.

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110,000 mile tune up


you probable skipped you're 90.000 major service point 30.000 60.000 90.000
platinum plugs are gone at 100.000 ,
ready...get you're wallet out..
trans filter service. Flush change all fluids ..brake coolant etc....
rear brakes are done unless replaced..check all brakes..plug wires drive axle fluid. Thermostat... cheep part very impotant.
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Just had a mechanic swap out my aod and after picking it up and driving aprox. 8 miles the car shut down. it turns over but wont start.


Hi Marcus, Sorry, I'm very stupid and have no idea what an AOD is? Please explain without the abbreviations and maybe someone can assist you, maybe even me! Regards John

Oct 13, 2013 | 1995 Ford Mustang GT

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Engine runs for a total of 5 minutes then shuts as though to run out of fuel. Whats happening?


You'll have to do some investigating to find out.
First, is it a lack of spark to the plugs, or fuel to the injectors ?
Then, is it something getting hot like a relay or the coil, or something like a build up of pressure in the gas tank.

Jan 21, 2013 | Cars & Trucks

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When taking off the trans shifts slightly hard but not noticeable to other people. Could it be the trans filter or fuel filter, or just me?


Not the Trans Filter
Not the Fuel Filter
Not just you

TPS Sensor --worth testing

Any number of shift solenoids or solenoid pressure
control pack -- could be an issue

Could & should be changing trans & power steering
fluids every 3 years & not over 30,000 miles, on those
fluids. That won't fix anything,but may help them last longer

Make sure you use Mercon V Fluid

If the Spark Plugs have over 60,000 on them, install new ones

If the front O2 Sensors are OEM & 100,000 miles -get rid of them

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Fuel pump just replaced. Relay has also been replaced But driving 55mph for more than 10 min sounds like it's backfiring through the carburetor. Shut the car down then start back up. Runs fine at first...


Hi! tpeterson277
Fuel Filter. Sorry I have not worked on this exact model but usaly mounted near fuel tank or on frame rail. Purchase a new filter and check fuel lines. May need tubing wrenches. On rare occation a car has bottomed out and crushed the fuel line. There should be a JIC fitting on the fuel rails as there is a fuel regulator and return line to the tank. I use my A/C gauges with a 3/8 R12/R22 fitting to check fuel pressure, could be 44 psi, but may vary with engine. If fuel pressure is to low the Fuel pressure regulator needs replaced.
InMrFixIt

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I have approximately 144,000 miles on my 2004 Impala. I have never changed trans fluid & filter since my purchase of the car, already having 30,000 miles at time of my purchase. Now I'm noticing hard...


Having owned a trans repair shop,your correct,if you change it now,
it will most likely slip.

You need to change trans fluid and flush power steering every 30,000 miles

Your trans is a good one and very luck to get past 110,000, even with fluid changes.

Save up $2000 for a rebuild or a CERT Reman,your over due.

That applies to all your vehicles

Bet you don't change your brake fluid every two years,spark plugs every three years or 60,000,
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Poor milage


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