An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 500 times.
Re: f150 5.4 pickup 2000 air condtioning
Your system is a 134a it is not freon based. the lowside is the bigger port and usually has a large black or blue cap on it it should be located near the a/c compressor on the driver side where the line goes to the condensor. your high side should be on the passenger side near the dryer it will be the smaller port and have either a black or red cap. the ,low side pressure should be 35 psi and the high side should be 150 psi. please rate this.....thanks
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Generally speaking, with outside air temp around 80 degrees, and the engine at idle, low pressure should be around 35psi and high pressure should be around 200-250psi. R134 freon will run a little lower or higher than R12.
there is a fuse for your A/C inside your kick panel.
but the issue here is not caused by a blown fuse. here are the probable causes:
1. freon - either your system lacks/leaks freon. have an A/C mechanic refill your freon and have a leak test. 2. compressor is not engaging - when you turn on the switch of your A/C, you should here a 'CLICK' sound in the engine. this means that the compressor (A/C motor) is already doing its job. have an electrician check if the wires are properly installed in your new unit
Well, there are actually two different 3.0L engines used in a 2003 Mercury Sable. One is an Overhead-Valve (OHV) type engine. The other is a Dual Overhead Cam (DOHC) 24-valve engine. You can tell the difference by just looking at the engine or by checking the 8th digit in your VIN. For the OHV engine the 8th digit of the VIN will be a "U" and the DOHC engine will be an "S".
This is important information when it comes to getting parts or information for your vehicle.
Anyway, I have provided belt routing diagrams below for BOTH of these engines.
First off if there is a check engine light on have the codes extracted it would have been helpful to know.Possibilities are TPS sensor (throttle position sensor) MAP sensor IAC(idle air control valve) start with these then let me know also if you could have the codes extracted I would be able to be more precise if you find my assistance helpful please take the time to rate my assistance most people dont take the time we like to know we are being appreciated thank you.
did you check if the cooling fans are working? this is very important, because they lower the pressure of the freon before passing throughout the expansion valve and getting into the evaporator,more pressure means highter temperature, , of course when you are driving the air flow throughout out the condenser lowering the freon temperature in the condenser and lowering the freon pressure at the high side, tha's way the temperature inside the car is lower ... you can have a similar problem if the condenser is partially plugged..hope this was very helpful...
Is there air blowing from the front vents? or can you hear the vacumm change when you change it from heat to cool..... I think it might be a vacumm problem... its a 1997 so the controller vacumm hoses may be cracking.. let us know