Ford - Explorer :: 2004 V6 - AC Set To Max - Pressure Drops At 31 Seconds
I have a 2004 Explorer 4.0L v6 that I recently charged the AC in. The engine was rebuilt not to long ago so the AC was completely recovered (bought it from a friend), so I know I started fresh. I am not by any means a novice mechanic but, just dabbling into the AC world and have watched a ton of how to videos, and what not.
I went out and bought a set of manifold gauges as well as a vacuum pump. I do have the rear air on this one so it takes (correct me if im wrong) 56oz of refrigerant. I pulled a vacuum of 28 (mercury?) and it held it for a good hour so, I am pretty sure no leaks. I went ahead and charged the system... Compressor kicked on like normal, air got cold, and everything seemed to be going just like it should be. I went by just a random r134a ambient pressure chart NOT from ford.
I thought great this is going to be like new! Well, now the problem i'm having is in the mornings at say 65-85 degrees it blows ice cold. Once the sun gets higher in the sky, and it gets up to 95-100, it doesn't seem to be able to keep up, even driving for miles and miles. I noticed the rear air evaporater low side, doesn't seem to feel very cold either. Does this mean I might be over charged/under charged?
I have a video of the pressures at 2000 RPM, AC set to "max", both front and rear fans set to highest setting, windows down. At 31 seconds, the pressure drop is because I let off the throttle and let it idle for a bit, so you can see those pressures.
Copy of 04 explorer ac status - YouTube....
Ford Fuel System :: 1988 - Fuel Pressure Drops Off Fairly Fast When Turned Off
Working on a 88 Ranger 2.9L 5-speed ext cab. The fuel pressure drops off fairly fast when turned off and I'm pretty sure that the check valve is bad. My question is, which pump has the check valve? It is a single mid tank set-up and has a pump in the tank and on the frame.
Pressure is fine while running. about 30psi @ idle and 40psi with no vacuum on the regulator. The pressure drops off within a couple of minutes which causes it to have to crank over for a bit to rebuild pressure and start.
It looks like the frame pump is readily available while the in take pump is special order. I just need to know which one has a check valve. I'm thinking the in tank pump, but I hate to waste money for the wrong pump.
Pressure drop rate
30 psi @ shut off
25 psi @ 1:05 min
20PSI @ 2:30 min
15psi @ 4:45 min
still dropping
Ford - Explorer :: 2003 - Fuel Pump Pressure Drops?
I have an 03 Explorer that had a starting issue. Long story short, it had no fuel pressure. So after testing the relay, I switched out the pump with an Airtex unit . All seemed fine...for a while.
Became hard to start again, checked Schrader valve with the key on, and not running, no pressure. Strange though, it would run.
So got the fuel pressure gauge on it. Turn the key and pressure will go to about 5-10psi and then drop to zero. Turn key off and on again, up to 5-10psi, then drop to zero. Turn the key to start and pressure goes up to 10psi, then starts, then goes to 30 while running and you can drive it around. Shut off motor and pressure goes down to zero.how the sending unit is supposed to hold fuel pressure and not release it? Is there some kind of check valve in the sending unit assembly that can be cleaned or does it need a whole sending unit with another pump? I already spent the $100 for the pump, and it is working if you can drive it!
Ford Super Duty (1999-2016) :: 2003 V10 Dies In Seconds After Starting / Fuel Gauge Drops To Zero
177,000 miles, fuel pump was replaced just before I purchased it a few weeks ago. Truck has been running like new until today when it started doing this completely out of the blue. If you watch the video, the sound is not off, the tach is moving independently of the sound of the actual revs. Occasionally when doing this, the fuel gauge drops to zero. Thinking this is an electrical issue somewhere.
YouTube.....
Golf VI R :: Fuel Gauge Suddenly Stops Registering - Needle Drops Below Red Empty Line
Four days into it the low tire pressure indicator lights up. Hit the reset, checked the tires, deflated some air and filled back up, etc and the indicator is still on. Even my local shop couldn't fix it. So yesterday I'm driving home and the fuel gauge suddenly stops registering, the needle drops below the red empty line. This morning I start it up and the fuel gauge is working, for about a minute, then it drops again. Same situation after stopping to get a cup of coffee. I'm taking it to a dealer today. Think the problem could be a defective speedo gauge cluster?
View 8 RepliesLexus SC430 :: Check Fuel Pressure To Verify If Fuel Pump Is Functioning With Pressure Test Kit?
I need to check the fuel pressure to verify if my fuel pump is functioning. What is the procedure and PSI?
Assume that I open the valve on fuel rail with engine off, then connect pressure tester kit, put key in ignition to "on" position, then pump up to specified PSI???
Accord :: 93 - Vacuum Drops Off To Zero Within Seconds Of Acceleration
1993 accord LX- Thought I had the problem solved by taking the 6 small port plugs out of the emissions system and cleaning up all the buildup plus opening the ports back up that were plugged.
When I put a vacuum gauge on the black rubber hose going from the control box to the EGR valve there is an initial buildup of vacuum upon acceleration but within seconds it drops off to zero. I switched control boxes and used one my brother had from his 91 accord he parted out and still had the same result.
Golf/GTI VI :: After Getting Fuel Car Started For Few Seconds / Running Real Rough Then Shut Off
So after taking my car to the stealership to get defective door seals fixed, I start driving home and I realize the front tire is flat. After changing to the awesome 17" spare, I decide to get gas. After filling the car up, it started for a few seconds running real rough and then shut off. I tried restarting it multiple times for about 10 minutes and the car kept turning over, but no start. I finally just shut it completely off for five minutes and it restarted, but is running roughly with the CEL light on and another green light, EPL, or something like that. I was able to drive home, but the check engine light is on still and runs like crap.....Back to the dealership in the morning. What this could be? I noticed lately sometimes when I push the gas hard it kinds of bogs down for a sec before accelerating. I had them check this and they said nothing looked wrong when they tested it. Fuel pump maybe?
View 13 RepliesGolf IV R32 :: Won't Start - Fuel Pressure?
so my car doesnt want to start so i am going to check a few things.
first how do i check my fuel pressure or the location?
Golf/GTI VI :: 2011 - Intermittent Low Fuel Pressure
My 2011 tdi has 18k on it and yesterday the glow plug squiggle on the dask lit up and started flashing. At this point the car had no power so i pulled over and called vw. They were very prompt and got me towed to a dealer but the dealer was unable to find anything wrong even though the malfunction threw a code. I just finished a three hundred mile trip after leaving the dealership and the car worked perfect.
View 3 RepliesFord 7.3L Power Stroke (1999-2003) :: Fuel Pump Runs For 20 Seconds At Key On / Long Start Takes About 6 Seconds
This applies to a 2001 F-350 with 73,000 miles on the engine. Engine oil level is good, batteries charged, HPOP reservoir is full and passes Cody test with flying colors. Fuel pump runs for 20 seconds at key on. Start takes about 6 seconds. If I shut the key off and restart immediately it starts in under 2 seconds but if I wait about 30 seconds it's a 6 second start. Here is an AE that I ran on it, it has me stumped. FWIW it seems to start quicker when AE is hooked up. ?? An odd whir type of noise comes out from somewhere under the hood when I first turn the key on and when I clear the codes with AE.
View 14 RepliesFord F-150 - 1997-2003 :: Oil Pressure Drops To 0?
I have a 2003 4.6l f150 164000 miles. While back oil pressure dropped to 0. Then chattering. Then up then down. I changed the oil and filter, then flushed the motor, then changed the oil and filter again. 1500 miles, no problems, no chatter. Then all of a sudden it happens again. Oil level good and clean. Oil pump?Pick up tube?
View 10 RepliesGolf VI R :: Lost Fuel Pressure Within 10 Minutes Of Fill Up
I have lost fuel pressure within 10 minutes of a fill up. I have an APR Stage2+ set up. I have added octane booster . Fault codes are showing loss of pressure. Is it possible my HPFP rebuild has taken after like 15K miles?:bang head: Also could be clogged fuel filter or injector I am aware.
View 9 RepliesGolf IV R32 :: Fuel Pressure Regulator Leaking After Taking It Off?
I took my fuel pressure regulator off hoping it would get to my green top coolant temp sensor. It doesn't Now when I put it back on its leaking? I didn't depressurize the fuel line first. Can this be the cause? If so do I just open the gas cap, pull the fuse for the fuel pump, and then re-insert the fuel pressure regulator? or do I need to get new O-rings for the regulator?
View 10 RepliesGolf/GTI VI :: 2010 - Fuel Pressure Too Low Fault Code
Getting a fuel pressure to low fault code. What could be wrong! 2010 GLI....
View 2 RepliesNissan - 300zx :: Engine Surge At Highway Speeds For Several Seconds Then Drops Back Down To Normal
my 1990 Nissan 300zx with 136,000 miles often surges at highway speeds for several seconds then drops back down to normal. the surge is usually 1000 rpm. does not happen if not in overdrive, and will not happen unless having been driving for 15 minutes or so. also seems to occur more on hot days (80 degree +) than on cool days. mechanic has looked at this several times but not yet able to determine why.
View 2 RepliesFord F-150 - 1997-2003 :: Oil Pressure Gauge Drops To Zero
I have an 01 F150 Lariat Supercrew 4x4 with the 5.4 Triton. The truck has 222,000 miles on it. Recently, I have noticed that when I am stopped at a stop light/stop sign while in gear, the oil pressure gauge drops to zero and the light comes on. As soon as I let off the brake and give it gas, it pops back up to normal. While driving, the needle never moves and stays consistent until I stop again, and back down to zero it goes.
If I put the truck in Park, the pressure goes back to normal. Same with neutral. It seems it is hit or miss and does not do this all the time, but I just wanted to see what your thoughts are. After doing some research I am leaning towards an oil pressure sensor/sending unit.... The truck runs perfectly fine, I just want to make sure it is not something more serious.
Golf IV / Jetta IV :: 2005 - Fuel Pressure Regulator Location
Where is the fuel pressure regulator on a 2005 Jetta 2.0 BEV. It's nowhere on the fuel rail.
View 1 RepliesGolf IV / Jetta IV :: 2002 GTI Barely Starts And Has Low Fuel Pressure
I got a 2002 GTI 1.8t , with about 109,xxx miles. Ran into a few problems, I took the hose off the fuel rail and turnt the key on. & noticed the fuel pressure was noticeable low & another problem i got is the car doesnt start most of the time. it takes about 3 or 4 cranks before it eventually tuns over. sometimes i noticed if i turn the key on and leave it for a minute or so itll start up. finally want to fix this POS. so I decided to run the codes & heres what i got
P0230
Fuel Pump Primary Circuit Malfunction
CONFIRMED
P0341
Camshaft Position Sensor A Circuit Range/Proformance B1