Engine bogs out no power

I have seen the fuel pump cause this but to be sure lets take a look at the fuel pressure these guides can help us and the video shows the pump being replaced in a similar car.

https://youtu.be/SOmd3BoE4YU

and

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

and

https://www.2carpros.com/articles/engine-has-low-power-output

Please run down these guides and report back.

My vehicle a 94 3.2 sho is running rich at idle, and will not rev up, it blows blue smoke out the exhaust and seems to be backfiring. I just put this engine in. it has approx 93,000 miles on it and was sent with a certified engine check stating the engine was in excellent condition. could the ignition system be at fault? give me your opinion please. thanks michael

The blue smoke sounds like oil. Are you getting any fuel in the oil? Have you checked the temp sensor to make sure it's not telling the computer it's much colder that it actually is? If you pull a plug, are they wet? Was the engine a direct replacement? Check engine light on?

Transmission problem
1994 Ford Taurus 6 cyl Front Wheel Drive Automatic 170K miles

Re: 3.8 L engine. Car was running perfectly and then problem arose due to loss of trans fluid. No pickup, running hot. I replaced quart and one half of fluid but with no apparent major improvement. Could damage have occurred that cannot be corrected with just merely replacing the fluid or could something else happened that is not trans related? Can you recommend any further tests that might confirm that trans is damaged.

running hot ?!
check coolant and check for a headgasket
as if have an engine failure that would effect the tranny

3.8 L engine. I just thought about another thing. Although my car is a '94 Taurus, apparently it has a '95 engine, which I found out when I had to replace the oil pressure switch. They work exactly the opposite of each other. The thermostat that the give me at the auto store is 195 degrees and I'm wondering if it should be 185 degrees. I don't thing there is a problem with the head gasket.

195 should be OK
but if you like to switch back to the 185 would be better to run at lower temp .

what would cause my 1994 ford Taurus to bog down when you push the gas and make it have like no power?

Clogged convertor, low fuel pressure.

Also problems with MAF

Every two seconds when on the had pedal loses power like it's running on half the cylinders barely maintains speed.

Check and test the following below:

Oxygen sensor
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
Cap and Rotor

If it doesn't apply disregard it

Computer problem
1994 Ford Taurus 6 cyl Front Wheel Drive Automatic

So the problem like that, at the car starts but every time push the accelerator pedal, it won't accelerate instead the rpm goes down to a full shut down. when let run without accelerating it runs but with a rpm les than 500, yesterday it shuts and I ried to restart the car now all the lights are on from the dashboard but the starter wont even crank my questions:
the low rpm is because of the the car computer ?
and can the computer prevent the starter from starting?

[quote:232a58ee91="joe THJE MAN"]Computer problem
1994 Ford Taurus 6 cyl Front Wheel Drive Automatic

So the problem like that, at the car starts but every time push the accelerator pedal, it won't accelerate instead the rpm goes down to a full shut down. when let run without accelerating it runs but with a rpm les than 500, yesterday it shuts and I ried to restart the car now all the lights are on from the dashboard but the starter wont even crank my questions:
the low rpm is because of the the car computer ?
and can the computer prevent the starter from starting?[/quote:232a58ee91]

Low RPM can be caused by the computer if it is receiving bad information from the sensors. It can also be caused by a bad ISC motor (idle speed control). BUT - with the "check engine" light flashing, you have other problems. Start by checking the fuses in the power distribution box under the hood. Also check the grounds where they attach to the radiator support. If the ground is bad to the integrated controller module on the radiator support, the car will not start or run.

I have a 93 taurus sho. It idles great. however when you increase engine speed the engine begins to miss and when decelerating the engine dies. The engine will also stall when driving highway speeds . I did a troublecode check and the code reader came back with the following codes: 336,411,538,632. What could be the problem?

what do you have for fuel pressure

the pressure is 34 at idle and 40 at 3500rpm. pressure is steady

My wagon has trouble accelerating from idle after highway driving. After stopping at a red light, the car idles smoothly, but when I press the accelerator, nothing happens for 3-7 seconds except some sputtering. After that, the car accelerates smoothly and has no trouble until I stop again. The service light is lit, but the codes say it is an AC compressor. The AC has not worked in years. The car does it when it is cold, but it is much more noticeable after highway driving. I have replaced the plugs, wires, distributor cap, and rotor in an effort to solve the problem, with no effect. To top it off, my mpgs have tanked to about 17 hwy. I am struggling here guys...any ideas?

Check the fuel pressure/mass airflow and throttle position sensors to include the EGR valve.

The big suspects are the TPS (throttle position sensor) and the MAF (mass air flow sensor). Also, you could have an air leak in the intake path.

It is possible that the code that was received was misinterpreted to be a problem with the A/C. Having said that, continue to the real diagnostics.

The TP sensor will set a code if it malfunctions - but not every time. If the sensor sends the PCM a "dirty" signal, it can cause hesitations. This is a good place to at least check. Check for dirty connections or corrosion on the connections.

Then there is the Mass Air Flow sensor and associated ductwork. The purpose of the mass air flow sensor is to tell the PCM how much air is entering the engine at any given time. The PCM then admits the proper amount of fuel to combine with that air to achieve the proper mixture. Any leaks of unmetered air into the engine will disturb that "perfect" mixture. Check for any kind of vacuum leaks. Examine the PCV and brake booster lines in particular. Examine the duct that goes from the MAF to the intake of the engine. Air leaks in that area are cause for major driveability problems.

Also, be warned that if the MAF goes out of calibration, in MANY cases, it will NOT set a code. If the signal it sends to the PCM is within a reasonable range - even if it is incorrect - the PCM will be satisfied, and will not set a code.

Hope this will be of some help to you. Good luck!

car runs hot when car is in drive gear has no power on acceleration

Inspect and test all the following listed below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard.

Engine Performance problem
1993 Ford Taurus 6 cyl Front Wheel Drive Automatic
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I was driving down the highway doing about 55 when suddenly my car started losing power. Even when I put my foot down on the gas the speedometer was steadily dropping to zero. When I pulled over and tried to restart the car the car wouldn't move. I am at a lost of what to do about this situation.

Check fuel pressure and fuel pump
check for spark
and treat what is missing

Every time I start my car, it seems as though it wants to jump out of the gate. I have a 92 Ford Taurus Wagon GL, with a 3.0 V6. I have gotten so used to turning on the vent (A/C control) to "calm" it down. I am still novice on idle and throttle issues. Car idles at approx. 15 mph, and cruises at 30 without pushing the accelerator. Anything I can do to reset this?

You need to check the idle air control valve by removing it (Get a Haynes manual for details)
Look for excessive carbon build-up. If so, they can't be cleaned - you have to replace it.

Also, check the Mass airflow sensor by tapping on it with a screwdriver handle. If the car acts up, then it could be bad.

Check the throttle position sensor, although this is a long shot. Measure the voltage between two adjacent wires (key on, engine off). Open and close the throttle slowly. The voltage should go from 0 to about 5 volts, smoothly. If it doesn't go the full range, then it is bad.

To whom it may concern, I recently purchased a 1991 (4) door Sedan Ford Taurus, the car ran pretty good up until I filled the tank with Grade 87, as soon as I began to drive after this fill up my car was shaking and anytime I pressed the Gas pedal there would be a delayed in acceleration to retify this problem I ease up pressure on the gas pedal and then lightly touch the gas pedal in order to resume a normal speed/acceleration. This has been an ongoing issue for about a week. Any solutions, answers or suggestions?

Thanks for your time.

One possibility is fuel starvation. Check fuel pressure under load. If the flow is not up to spec, it will make the car slow to accelerate, and cause it to bog down under load.

Another possibility is the TP sensor. This sensor can cause hesitations as you describe. Have the system checked for codes.

Also on the list is the MAP sensor. This is the main sensor that controls the fuel/air mixture. Pay particular attention to the vacuum line leading from the manifold to the sensor. When this sensor fails, many times it will NOT generate a trouble code.

At least I have given you a few things to investigate. Hope this helps.

engine has no power atmid to full throtlle,is warmer than usaal.just melted efi presser feedback sensor,which i replced.189,000 miles. any ideas whats going on? has been running good and strong tillthe other day. it sounds like engine is still running good, car is just a dog now. how do i check if cats are plugged or not.

Check the catalytic converter to see if it is blocked or plugged. Check for vacuum leaks. IF the check engine light is on, have the computer scanned to identify the trouble codes.

my car died while driving. starts back up but chugs slowly and when u step on the gas pedal the car won't rev up and acts like its not getting gas. we have checked everything from fuel pump to compression to pressure and still don't know what the problem is

[quote:b3309892d9="chula1977"]Computer problem
1989 Ford Taurus 6 cyl Two Wheel Drive Automatic 56000 miles

my car died while driving. starts back up but chugs slowly and when u step on the gas pedal the car won't rev up and acts like its not getting gas. we have checked everything from fuel pump to compression to pressure and still don't know what the problem is[/quote:b3309892d9]

Could be many things.

Start with the basics.

Fuel pressure should be 37 to 43 psi with the engine running.

Compression test is also in order. If compression is low, it would indicate a valve timing problem like a timing chain (or if it is an SHO, a timing belt problem).

Ignition timing is also a possibility. If it is a 3.0 or 3.8 engine, check the distributor drive gear.

These are a few things to check. There are more! Give me a bit more information about engine size and type, and I can offer more information.