“Swooshing” or sucking for air while accelerating?

[Andy]

Some of the pretty common sounds you will hear:

Fuel system priming happens when you unlock the doors and will also do it if you refresh “Vehicle Info” on the ford pass app. Anytime the truck does a status check it will make some mechanical sounds.

There is also the wastegate solenoid which cycles back and forth during the first few minutes of a cold start. This changes the engine tone slightly. More pronounced if you have aftermarket exhaust. You can watch it move from the passenger side wheel arch.

More obvious sounds would be the sound of the A/C clutch engaging and disengaging

There is a small electric water pump just behind and below the coolant reservoir. Mine is silent but maybe someone out there has a noisy unit?

Relays for the heated seats and windows can be heard from inside the cab. Wish they would use solid state relays like my volvo, but it’s understandable.

Clutch fan and injection pump have been well covered here now.

Those are just about all the sounds I can think of.

Sponsored

 

[caprtaineddie]

Hi Andrew,

There is another thread that explains this, but it is called Morning Sickness. Overnight the silicone fluid drains down to the bottom of the fan clutch, and locks the fan in the engaged position. There is also an electric connection to engage and disengage the fan, but this morning sickness goes away when the fan is spun at moderate revs.

Best,
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

Thanks for the explanation. I couldn't figure out why I only hear the fan when I first start the motor. Is there a reason for using the clutch fan instead of an electric one? Most vehicles today seem to use electric.

 

[P. A. Schilke]

Thanks for the explanation. I couldn't figure out why I only hear the fan when I first start the motor. Is there a reason for using the clutch fan instead of an electric one? Most vehicles today seem to use electric.

Hi Eddie,

I really do not know why the program chose the engine driven fan for sure, but the high ambient loaded to GVW really tax engine cooling and likely resulted the need of a fan that drew more CFMs than an electric fan.... JMO...

Another back story of sorts. I was at our old Arizona Proving Ground in Yucca Flats Az. We had a test procedure that was called Davis Dam. It was an unbelievable torture test. I was there for the 1995 Ranger 2.3L EFI proveout. So we headed to Laughlin NV, which is the start of an up hill 8 mile road to Davis Dam. When we got to Laughlin, we ran into the F Series engineers who needed a bit of help. As we were in process of updating our engine computers, I was asked to help by doing some data recording for their team. Hopped in to the F350 shotgun with a huge clipboard The truck was loaded to GVW and was pulling an enclosed trailer for a total GCW of 30,000 lbs. So we headed up the grade to Davis Dam, Outside temp was 117°F. Driver had his foot to the floor....WOT, trans downshifting to 2nd gear...ground speed 15 mph...no real air flow to cool the radiator. Absolutely some of the toughest high ambient conditions I had ever experienced. I was focused on data recording with the engine screaming. When we arrived at the Dam, we hopped out and looked under the truck...the exhaust system was glowing cherry red all the way back to the muffler.... One wicked test. Amazingly, the vehicle did not overheat....ran hot for sure but did not overheat. So this test run was successful. There would be 7 more runs over the week to validate the cooling package on the F350.

Best,
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

 

[Glocker]

Some of the pretty common sounds you will hear:

Fuel system priming happens when you unlock the doors and will also do it if you refresh “Vehicle Info” on the ford pass app. Anytime the truck does a status check it will make some mechanical sounds.

There is also the wastegate solenoid which cycles back and forth during the first few minutes of a cold start. This changes the engine tone slightly. More pronounced if you have aftermarket exhaust. You can watch it move from the passenger side wheel arch.

More obvious sounds would be the sound of the A/C clutch engaging and disengaging

There is a small electric water pump just behind and below the coolant reservoir. Mine is silent but maybe someone out there has a noisy unit?

Relays for the heated seats and windows can be heard from inside the cab. Wish they would use solid state relays like my volvo, but it’s understandable.

Clutch fan and injection pump have been well covered here now.

Those are just about all the sounds I can think of.

I just learned of a new noise! When using Trail Control during a descent, there is a noise that I assume is the truck modulating the brakes. At first it was concerning but it was consistent with the descent and speed and stopped when the terrain leveled out. I will say it again; these trucks make A LOT of noise! LOL

 

[caprtaineddie]

Hi Eddie,

I really do not know why the program chose the engine driven fan for sure, but the high ambient loaded to GVW really tax engine cooling and likely resulted the need of a fan that drew more CFMs than an electric fan.... JMO...

Another back story of sorts. I was at our old Arizona Proving Ground in Yucca Flats Az. We had a test procedure that was called Davis Dam. It was an unbelievable torture test. I was there for the 1995 Ranger 2.3L EFI proveout. So we headed to Laughlin NV, which is the start of an up hill 8 mile road to Davis Dam. When we got to Laughlin, we ran into the F Series engineers who needed a bit of help. As we were in process of updating our engine computers, I was asked to help by doing some data recording for their team. Hopped in to the F350 shotgun with a huge clipboard The truck was loaded to GVW and was pulling an enclosed trailer for a total GCW of 30,000 lbs. So we headed up the grade to Davis Dam, Outside temp was 117°F. Driver had his foot to the floor....WOT, trans downshifting to 2nd gear...ground speed 15 mph...no real air flow to cool the radiator. Absolutely some of the toughest high ambient conditions I had ever experienced. I was focused on data recording with the engine screaming. When we arrived at the Dam, we hopped out and looked under the truck...the exhaust system was glowing cherry red all the way back to the muffler.... One wicked test. Amazingly, the vehicle did not overheat....ran hot for sure but did not overheat. So this test run was successful. There would be 7 more runs over the week to validate the cooling package on the F350.

Best,
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

Thanks for the explanation. Have you ever seen a turbo at night? I used to occasionally fly a Cessna 421 that has "gill slits" on the engine cowling. At night, the turbos would glow cherry red!

 

[P. A. Schilke]

Thanks for the explanation. Have you ever seen a turbo at night? I used to occasionally fly a Cessna 421 that has "gill slits" on the engine cowling. At night, the turbos would glow cherry red!

Hi Eddie,

I saw a lot of cherry red exhausts in the Dyno lab at Ford including the SVO Mustang 2.3L Turbo...Amazing at the time! It was a few years ago I was on a Citation 10 with my wife thanks to our neighbor when we landed and refueled and parked was this Cesssna with the cowling removed to show the turbo. Weird looking long nose aircraft. ? My neighbor had a Beech Baron twin that was pressurized but gave it up for Net Jet....

Best,
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

 

[Clump]

It's been said before - We are so fortunate to have Phil here. His insider knowledge is fantastic and I just love his back stories!

 

[801Ranger]

Rob its normal, it is just the clutch fan.

Thank you for the response. I’m a first time truck owner and was wondering the same thing. Had no idea what the air blowing sound was after initially starting it up and strolling slowly through the neighborhood. Make sense. Just gotta get used to truck stuff now, which I’m excited about!

 

[wanted33]

Thank you for the response. I’m a first time truck owner and was wondering the same thing. Had no idea what the air blowing sound was after initially starting it up and strolling slowly through the neighborhood. Make sense. Just gotta get used to truck stuff now, which I’m excited about!

When I started the engine the day we took our first Ranger test drive the wife ask, "What's all that noise"? Thanks to this forum I had the answer ready.

Sponsored