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I let the car sit for a few hours and o I let the car sit for a few hours. After starting it, the AC was blowing cold and pressures were low side 9psi and high side 115psi. After revving the engine a few times, the pressures were low side 35psi and high side 155psi. The lines on the high side...

Thank you for that chart. Very informative. I brought the refrigerant level up to 14.2oz. Low side 38psi and high side 155psi. Went for a 4 mile drive and am still suffering the same problem: AC fades after going 35+ mph. Pressures after drive low side 9psi and high side 115 psi.

Yes, I did weigh the charge. Book calls for 14oz of refrigerant and I put in 13.8. Would I hurt anything by putting in another ounce or two?

Recharged the AC and got readings of 30 psi low side and 150 psi high side. When I get up above 35 mph the AC begins to fade. I pulled over and checked my pressures 3 psi low side and 125 psi high side. If I let the car idle in the driveway, the AC will blow cold for 20 minutes, but once I begin...

UPDATE: Recharged the system with 48oz of R134a and she's working great. At idle, the AC is just cool, but when the bus is rolling down the road she's blowing snow.

I am replacing the AC compressor and accumulator on my 2004 Yukon with rear AC. I blew compressed air through the lines to remove any debris but did not use a solvent. The book calls for 11oz of PAG oil to be added. Should I add less than that since I didn’t replace the condenser and no oil came...

I honestly cannot answer that question. I don’t know how the SUV is suppose to ride or feel normally. When I bought the vehicle, I had an error message on the dash that said “Service Ride Control”. I have not troubleshot the issue more then and decided to just proceed with the air ride...

Just bought a new to me 2004 Yukon Denali XL. It’s a secondary vehicle that I have to tow my 5000lbs boat to the lake and back. Air ride suspension no longer working and I want to switch to coils and standard shocks. I’ve seen conversion kits priced anywhere from $500 to $600. Are they necessary...

A 2008 Jeep Liberty with a 3.7 engine has a tow capacity of 5000 lbs. A 2008 Grand Cherokee with the same 3.7 engine has a tow capacity of 3500 lbs despite have a longer wheelbase than the Liberty. What are the differences between these two vehicles which account the differences in tow ratings?

My uncle was telling me about his new Isuzu F-Series class 6 box truck he has on order. His current Isuzu truck is powered by a 4 cylinder diesel and the new truck will have a 6.7 Cummins. Research revealed that the 6.7 in the Isuzu has 260 HP and 440 lbs of torque. The 6.7 in a Ram truck has...

This what I needed to know. I’m learning how to polish and I enjoy practicing on inexpensive cars like this, but I’ll save myself some time and stop now. Got the car for $3000 with 164k miles as a grocery getter for the wife so the color isn’t a huge deal. Thank you to everyone for all the...

No. I’m using a DA polisher with an orange chemical guys pad. No red is showing up on the pad.

No. It looks the same when wet.

Clear coat is faded. I just bought this car a few months so I don’t know if any paint warranty would apply to me.

Appreciate the response. I’ve tried Sonax and Meguiars Ultra Cut Compound so far without success.

My wife’s 2009 red Honda Fit is suffering from some extremely faded paint. Painted metal surfaces have faded to a pinkish red while plastic surfaces have maintained most of the factory red. I washed/clayed/and began polishing with a fairly aggressive Sonax Perfect Finish and a Chemical Guys...

The fan inside the car only blows at half speed and the headlights become dimmer as I drive. After I get home and turn off the car, it won’t restart without charging the battery.

I have a 2003 Jetta TDI with an alternator not charging the battery. In the past when I’ve had a bad alternator, that battery light illuminates on my dash. But this time, no battery light. What else should I check/troubleshoot before I replace the alternator?

The DPF isn’t near the radiator. It’s underneath the car just behind the front seats. That said, if the dpf is in regen when I turn off the car, the radiator fans will keep running which leads me to believe it plays a role in cooling the dpf.

Last winter I blocked the radiator on my 2003 Jetta TDI (EGR removed) with a simple piece of 3 inch thick foam. The car warmed up much quicker and engine held steady at 190°F while driving. Without the foam, the car struggles to maintain temp when ambient temps are below 20°F. I was thinking of...