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Post by northernfarmer on Feb 15, 2023 16:06:12 GMT -6
There may be a thread on pickups or random bits here and there on threads I think is more like it so I figured I would start over again with a thread on vehicles or more specifically geared towards pickups, Diesel or Gas engines and all other aspects of said pickups, good or bad. I will admit its rather disheartening to look up potential problems on pickups that have been made in the last number of years and tends to coincide with all the pollution crap they are throwing at diesel engines but also gas as well and also transmission issues, electrical, and the insane complexity of all the fancy gizmos they put in trucks now.
Zeroing in on the theme of engines, gas engines that have lifter and camshaft failures because they are designed around the cylinder shut off system to save a little fuel to direct injection gas engines that are building up with insane amounts of carbon on the backside of the intake valves and intake runners, or its the variable valve timing system crapping out, to diesel engine issues with EGR failures and DPF plugging, DEF system issues, and in the last number of years fuel pumps and namely the CP4 unit that GM was using, Ford still uses, Dodge was using and had so many failures I believe they reverted back to the CP3. GM has been using a Denso HP4 since 2017 and haven't heard one way or the other on that pump but the assumption is its better and Ford had no other options due to no room to go back to a CP3.
Here is a video of a company in the states that at least claims they have a solution ( I bet its inexpensive too ... ) to replace the Ford CP4 with a redesign of a different pump that has been around for a while on other engines. Its not out yet for sale but as he mentions its been in the testing phase for a number of months. I don't know anyone personally that has had a CP4 failure but there would be lots out there that have and its a very expensive repair as so much has to be replaced on the truck to prevent the new pump and injectors from failing with existing shrapnel.
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Post by meskie on Feb 15, 2023 17:51:03 GMT -6
CP4 issues are caused by poor fuel and guys not changing their fuel filter.
Also chev added an electric lift pump to help with pump issues. Not sure if ford and dodge have gone that way yet or not. With the lift pump it uses the fuel to cool and lubricate the cp4. They didn’t like starving for fuel.
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Post by northernfarmer on Feb 15, 2023 17:59:42 GMT -6
And the problem is our fuel quality is out of our hands other than filtering we do on the farm, and some of these additives on the market are very questionable and pocket draining. I suspect the lack of sulfur in the fuel is one of the issues but that can't be run through the DPF. The rail pressures went up as well and that is a very bad pump design in its crank case and seems to take nothing to get it failing. And to top it off the fuel filters on these pickups or some of them anyway are not sufficient. GM never had an electric lift pump in the tank until 2017 and that was felt to be yet another issue to cause the CP4 to work harder to get fuel and just made the problem even worse. I see you just did an edit and yes I believe Ford has had an electric fuel pump all along or at least for the last number of years anyway. Not sure about Dodge, I know guys were sure putting on the aftermarket higher volume electric pumps along with the two filter housing from FASS or other companies.
Having the electric fuel pump ( back in the days of the ford 6.0 Litre they had an electric pump ) makes it easy to prime the system after replacing the filters, turn on the ignition and let the pump run and do that a few cycles to push out all the air as it returns to the fuel tank, only then start the engine.
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Post by northernfarmer on Feb 26, 2023 20:19:56 GMT -6
Here is a very handy transmission gear ratio to ground speed calculator, its really designed for pickups and four wheel drive vehicles to create a lot of calculations. If the transmission isn't in the list then plug in your own ratio numbers and put diff gear ratio, transfer case ratios, tire size and then as it creates charted numbers in the various charts below where the engine rpm can be changed or the ground speed per chart type. Its quite the comprehensive chart that someone on here might find valuable to use. There is a left and right column so the same vehicle with two tire sizes or its two different axle ratios .. or two different transmissions, or its totally different components all together can be compared side by side.
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Post by Oatking on Feb 27, 2023 7:08:03 GMT -6
You guys speak of fuel issues. The silliest thing about my 2021 gmc pickup was no gas cap! You want fuel problems , good place to start. That is why I like my dodge 2022 pickup. Its old school I guess in design but its reliable.
We wouldnt drive our tractors all day with just a little flipper as a cap? Just my two cents on possible fuel problems.
Big discussion on the ford ranger forum on using high fuel octan affecting the ecoboost turbo engine.
These guys need to realize if they want big horsepower out of there engine you have to think displacement instead of raising horsepower out of a four banger. No wonder they blow their eco boosts.
Maybe completely off topic , but is there an alternative to the turbo charger ? It seems these turbos are prone to so many problems, I just wondered if other technology existed for gas or diesel engines to push air to the engine.
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Post by meskie on Feb 27, 2023 7:21:42 GMT -6
Turbos aren’t the problem it’s the engine designs using them or the people operating them. There are trucks with thousands of hours running without turbo problems.
Ford went away from the gas cap a lot of years ago and I haven’t heard many issues associated with that but I would still prefer a cap I can stew on tight.
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Post by kevlar on Feb 27, 2023 7:58:04 GMT -6
 These work good for a little extra air!!! I’ve been surprised with Ford not having issues with no gas cap, but can’t say I know of any. Dad’s truck doesn’t have one and drives 95% on gravel, my truck doesn’t have one either but does have a locking top, not air tight but would keep some dust out. I can actually think of more cases where the fuel cap actually caused problems than no cap at all. There certainly is dust laying on top of the flap in the cap though, so would imagine eventually that has to have some bad side effect. |
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Post by hardrockacres on Feb 27, 2023 12:23:31 GMT -6
GM hasn't had them for a while either. I haven't had any issues with my 2018 Silverado or 2010 Cadillac CTS that both do not have gas caps. no issues with the wives Raptor or the 2006 Lincoln LS we had before the Cadillac. Always on gravel roads maybe 50% of the time.
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Post by northernfarmer on Feb 27, 2023 19:58:58 GMT -6
I've not owned a vehicle with the goofy no fuel cap type fillers and I guess in my mind I think of crap that can easily fly into it or water. I expect there is a reason why they put caps on the diesel pickup fuel and def tank fillers. I see someone sells a Ford aftermarket locking fuel cap of some sort for those capless fillers. And then again with the diesels given that it seems to happen that people pour def into the fuel tank as it is, if there were no caps that would make that mistake even easier to accomplish and a reason right there to have a locking fuel cap on a diesel.
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Post by northernfarmer on Feb 27, 2023 20:09:10 GMT -6
I have a question to others that have dealt with TPMS monitor systems, what you do to make the sensors relearn if for example swapping to a set of winter tires mounted on rims and if any of you have the scan tools to change the pressure warning pressure level and also to relearn or program the tire monitors ?. Which also leads into having that same said equipment to read all codes when the idiot light comes on so you can clear codes or diagnose what is wrong rather than be completely in the dark and have to see your dealer every five minutes.
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Post by meskie on Feb 27, 2023 20:34:51 GMT -6
I have an older obd2 reader. Gives general information and can clear codes. Works for what we need. I know a few guys who have more expensive ones $4-5000 ones that they can do a lot more with. Not the 20g snap on ones.
I bought a tpms tool off Amazon to relearn the sensors when rotating tires. Wasn’t very much maybe $20 a few years ago. I’m pretty sure changing the pressure set points requires going into the BCM of the vehicle to do.
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Post by northernfarmer on Feb 27, 2023 21:58:16 GMT -6
I've never had an obd2 reader to play with but it seems one has to have something of some sort that can tell a person the code and hopefully what the code actually means. As to the TPMS tools, I get that idea there are cheap ones out there that can do the relearn as long as its compatible with the sensors and that the sensors are working. Otherwise again it seems to take some fancy tools that can re program most of those sensors as well as check battery life and so on. I feel so lost with dealing with anything newer as its all about massive amounts of electronics and understanding the systems and that can take years for someone who is actually in the business to sort of grasp it all, still lots of techs stumble around and can't figure things out. For sure changing pressure alarm settings would require the ability to go into the vehicle systems and change that, I get the idea that some dealers don't want to do such things and am guessing for liability reasons so either have to have the tools or know someone that isn't anal and will change parameters like that if needed.
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Post by meskie on Feb 27, 2023 22:13:40 GMT -6
OBD2 tool all you need is to get the code. Then google the code most times you can find the most common issue for that code or sometimes there will be multiple codes with one common problem.
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Post by OptimallyDismal on Feb 27, 2023 23:00:40 GMT -6
I have a question to others that have dealt with TPMS monitor systems, what you do to make the sensors relearn if for example swapping to a set of winter tires mounted on rims and if any of you have the scan tools to change the pressure warning pressure level and also to relearn or program the tire monitors ?. Which also leads into having that same said equipment to read all codes when the idiot light comes on so you can clear codes or diagnose what is wrong rather than be completely in the dark and have to see your dealer every five minutes. My jeep has a learn mode that you use to program the system, you also need the donut shaped magnet that actually comes with the jeep (should be near the spare tire tools), you put the magnet on the valve stem starting on the left front, the horn bips, then you have 10 seconds to put the magnet on the right front then right rear then left rear, I think it gives a double horn bip and you are done. This may or may not help you, the info is in my operator manual in the glove box. I have the Autel TPMS scanner that I got from Princess Auto that will scan each sensor and allows you to sort out dead or defective ones. PA also sells various code readers that vary in price and capability. I got a MS906 Autel scanner that can force some functions via the OBD system, for example turn on the electric fan to test if it works or not. I am still learning about this machine, but it has a big screen and you can choose a fairly long list of live data to monitor and based on the codes set make a diagnosis. This unit also has a subscription every year for updates that is around $500!!!  The biggest problem is that really to do anything with these vehicles you need wiring diagrams and an explanation of what parameters set the codes, about the only way to get that is to subscribe to the online services, and they are quite pricey. I have learned a lot from watching South Main Auto on youtube, he is very good at explaining how he uses his scanners to troubleshoot the vehicles. |
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Post by northernfarmer on Feb 28, 2023 0:28:33 GMT -6
I had never heard that before about this magnet trick, I wonder if that is a Jeep thing or some other Dodge products use that system. As to PA selling Autel, I had no idea they were into selling such items and I guess I've never passed by where they have such electronics. I looked on the PA website and do see a few items, nothing real fancy though as far as the diagnostic end of things from looking at the prices but looks like they handle some of the TPMS systems, a couple of them are on sale although the one looks like it must be on its way out as they have it really marked down and nothing showed up when I wanted to bring it up. And as to those fancy diagnostic tools, yes that I had forgotten about that they require a yearly subscription and so buying the tool is only the beginning of what they make off of a guy. There is a reason though why other companies have come out with tools as they can't afford the Rape Wagon prices ! I don't suppose the unit you bought will work year after year once loaded with the information for your particular vehicle or does it rely on a constant wifi connection to even work properly ?
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