SureTrack Users General Discussion

[greasybob]

Not enough fuel or too much air, You gotta intake leak ? Or low fuel pressure ? Or it's not getting measured correctly ?

[liljoe]

Saturday is Pi day: 3.14.15......

[Witsend]

What causes lean codes on 02,03 5.3 silverados? And buzzing sound at the fuel press regulator?

Unplug the vacuum line to it and see if the noise stops. Put your finger over the vacuum port of the fuel regulator and see if the vacuum diaphragm is drizzling gasoline into the vacuum supply hose which could result in some cylinders rich and others getting leaned out too much, and crankcase oil dilution can occur after repeated fuel rail bleed downs . Collapsed pcv hoses can generate strange sounds

[dodge90]

DR. Jake, is it only 1 bank lean, had a bunch of o,2 sensors do that. Noise????
Sorry no clue
Sorry but i'm catching up here but who the heck lifts a 2wd truck? kinda like talking the talk but not walking the walk. Lift + bigger tires = 4 wheeling

[liljoe]

[QUOTE=dodge90;47746 who the heck lifts a 2wd truck? kinda like talking the talk but not walking the walk. Lift + bigger tires = 4 wheeling[/QUOTE]


When you do that, you have a faux by four..... ?

[Witsend]

Common Sense is Dead

who the heck lifts a 2wd truck?

Same kinda folk that Charge $4-5K for a New Scan Tool that doesn't include European Coverage as Standard yet.

https://www.youtube.com/watch?v=BM0Jjw421rA

[greasybob]

Crazy question of the day... Everyone knows that when adding coolant to an engine while it's running, if you rev the engine up the coolant level goes down. Where does that coolant go ? Is it just compressing air that is still in the coolant system ? What if you have an engine that is hot (thermostat open) and all the air has been bled out (?), you rev the engine and you can feel the upper radiator hose go soft, let up on the gas and it stiffens up, Is this evidence of gases in the coolant system ? You can't compress a liquid into smaller space. Is there always some air (gases) in a coolant system ? This test would be on a non degas bottle type cooling system. To add another question; why did most manufacturers find it necessary to go to a degas bottle type coolant system instead of an overflow/recovery type ?

[liljoe]

Same kinda folk that Charge $4-5K for a New Scan Tool that doesn't include European Coverage as Standard yet.

https://www.youtube.com/watch?v=BM0Jjw421rA

I didn't know snappy did trucks......

[Skip]

A lifted 2wd is like a chromed out Harley. All about the looks. Pre-runner style trucks are popular here.

[dodge90]

"Crazy question of the day... Everyone knows that when adding coolant to an engine while it's running, if you rev the engine up the coolant level goes down. Where does that coolant go ?" GreasyBOB
good question, never thought of that, got me wondering now, and as for the degas bottles just look at where they put the rad's anymore, 2002 03 gm's were fun to fill with they put the rad. caps. Can't get at them. LOL

[Crusty]

Saturday is Pi day: 3.14.15......

EXCELLENT-!! LMAO

[Dr.Jake]

Greasse, are you using the snap on turd polisher? Mine isn't not.

[Crossland Auto]

Greasy, I have thought the same thing. Ever since I got the spill free funnel, I thought about it. I have noticed that on initial fill when cold, coolant will drop a lot more than a warm one with the thermostat open.

I believe it all has to do with air. I still use it instead of the air lift filler on older cars that I do not trust the vacuum on, and on vehicles that I did not drain the whole system. I have been actually using the level of drop as a gauge of possible size of air bubble. Run a bit, let it sit etc.

Jake, The only time I have heard of a fuel pressure regulator buzzing, was a Suburban at a shop across the street. After replacing it 3 times, they found that someone had pinched the plastic return line and created a small kink restricting return flow. BUT, that does not explain your lean codes.

X

[maven]

Bob,
My thoughts on this have always been that's there is almost always air in the system, higher pump speeds can create cavitation, and the increase in speed creates a pressure drop on suction side of pump and pressure rise on output side. Atmospheric pressure can then push down on coolant.

Surge/degas tanks came in to fashion due to cooling system design changes that created complex hard to bleed systems and systems where radiator cap wouldn't be highest point.

[greasybob]

Crazy question of the day: A 2012 Kia Sedona 3.5 comes in with a check engine light on. It has cam correlation codes, while it's sitting there idling I notice the oil pressure light flashing intermittently, oil level is ok. Ok I can put this together, low oil pressure and the cam phasers can't keep up with the commands. The vehicle is still under warranty so I don't mess with it too much and send it to the dealer. They call back and report that the wrong oil filter was installed, I grill the customer and yes they just had Iffy lube change the oil. The question is how does an oil filter lower oil pressure assuming it's not leaking. I've heard reports like this before but always questioned their reliability. Wouldn't there be far more resistance to the oil from the crank and cam journals/bearings. Can a wrong bypass spring (in the filter) lower oil pressure. If you have 60 lbs of oil pressure on a running engine is the oil filter the bottle neck that's restricting flow. The only thing that I can think is that the wrong filter is re-routing the oil in the filter base. I have yet to get the vehicle back here to verify the repair.