Fuel Problem?

[black92coupe]

recently ive been having a weird problem with my car, its a 5.0 speed density car

it revs freely when its out of gear but sometimes when you pin it the car bogs for a sec and then all the power comes back after a few slow rpms. sometimes it runs perfectly fine.

other times it bogs n then starts to make popping sounds in the intake i belive, and the whole car starts shaking and u can barely move, ive heard the exact same popping sound when i ran out of gas.

it has these problems weather i have a quarter tank or if its full.


any help is appreciated

 

[troyGT03]

as a speed density guy...check the codes. we dont have a check engine light. http://www.troublecodes.net/Ford/ try this first.

 

[Fox8950]

Yeah of course check codes first like troy said Have you checked out fuel pressure and is there any chance your timing is off?

 

[jrichker]

Some help with dumping the codes...

Dump the codes and see what the computer says is wrong…Codes may be present in the computer even if the Check Engine light isn’t on.

Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great. You watch the flashing test lamp or Check Engine Light and count the flashes.

See http://www.troublecodes.net/Ford/

IF your car is an 86-88 stang, you'll have to use the test lamp or voltmeter method. There is no functional check engine light on the 86-88's except possibly the Cali Mass Air cars.

89 through 95 cars have a working Check Engine light. Watch it instead of using a test lamp.

Codes have different answers if the engine is running from the answers that it has when the engine isn't running. It helps a lot to know if you had the engine running when you ran the test.

Trouble codes are either 2 digit or 3 digit, there are no cars that use both 2 digit codes and 3 digit codes.

For those who are intimidated by all the wires & connections, see http://www.actron.com/product_detail.php?pid=16153 for what a typical hand scanner looks like. Normal retail price is about $30 or so at AutoZone or Wal-Mart.

Or for a nicer scanner see http://www.midwayautosupply.com/pc-7208-90-equus-digital-ford-code-reader-3145.aspx – It has a 3 digit LCD display so that you don’t have to count flashes or beeps.. Cost is $30.