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View Full Version : 2008 F150 4.2/5speed


AWilsonCreativeServices
02-08-2010, 09:10 PM
2008 F150 4.2L 5 speed reg cab XL longbed 2wd with 8,000 miles at an area dealership listed at $15,950. Ok everyone, here's the same boring epic question: what's your opinion of this truck?
I have a small car that I love (esp at 26 average mpg) but I really need a light-duty daily-driver truck to knock around in so I don't have to take my 2003 GMC 2500HD 6.0 4x4 to every little sprinkler, pinestraw, or estimate job. Also, I am being serious about getting lawn maintenance accounts this summer, and might think of using this truck to haul a trailer and equipment. I know it's not a gargantuan tow beast, but it would fit the "daily driver" bill better than the 2003 GMC (also the GMC doesn't have A/C). I am easy on vehicles and equipment, and, most importantly, HATE AUTO TRANSMISSIONS. Does anyone use the 6 cyl/5 speed daily that could give me some imput?

Thanks. Roll Tide.

GreenLightLawnCareInc
02-08-2010, 09:17 PM
Ford's 4.2 V6 is a bored out version of their 3.8 V6 that they used to put in cars and Windstars. Most of them seemed to average about 100,000 on the engine before they throw a rod. They have decent power for a V6, but the life will not be as good as a V8. Ford's 4.6 V8 ran good and would get about 24 mpg empty on the highway. The V8 would be a better choice for the long run!

unkownfl
02-08-2010, 11:00 PM
I have three 4.2 autos. Two have over 200k and one is less than 100k. That is total bull that they only last 100k. Your statement that a 4.2 is just a bored out 3.8 says it all. You can't bore a engine that far it would be a two cylinders at that point. If it were such a bad engine Ford wouldn't have used it as long as they did. The only down fall to the truck is that the brakes just aren't enough to stop a load, but this could be said about almost all half ton trucks. I picked up two loads of 2400lbs of concrete in my f-150 this weekend with zero issues.

AWilsonCreativeServices
02-09-2010, 12:17 AM
Thank you both for your replies. I am glad to hear that people have accrued high mileage on these trucks without major incident. Does anyone have experience with the transmission? I believe it's the M5OD-2, which I know is not a HD tranny, but I worked for a guy who ran two reg cab f150s that toted approx 3,000 daily without much problem. The 4.2 doesn't have much aftermarket support (read:none) but has anyone put a cold air kit or something else simple on it, and do they help?

GreenLightLawnCareInc
02-09-2010, 08:33 AM
I have worked at a Ford dealership for 6 years. Just do a google search for Ford 4.2 V6. As for the mileage, I'm sure that you can get more but there were probably 10 V6's to every 1 V8 that needed replaced in those trucks.

360ci
02-09-2010, 09:42 PM
A co-worker of mine had a late 90's STX short box reg cab 4.2L with the 5 speed. It was a quick truck when unloaded and easy to drive. I borrowed it a few times when my vehicle was in the shop. I can't speak for mileage as after a few days it was around 1/4 tank and I just threw $30 in to cover the mileage I put on it. When he sold it, it had 180K on it and still ran like a champ. The norm for any gas engine is around 150K. If you keep up the maintenance and don't exceed oil change intervals you can double that.

Fuel pump, tank, emission components, exhaust, bearings, suspension bushings will all rot out before the engine will die.

The 'old' 3.8L had a slew of problems in it's earlier years, but the 4.2L reliability is top notch at the time.

hosejockey2002
02-09-2010, 11:41 PM
Ford's 4.2 V6 is a bored out version of their 3.8 V6 that they used to put in cars and Windstars.

The 3.8 is an older design pushrod engine. The 4.2 is a Triton truck engine, same basic design (overhead cam) as the 4.6, 5.4 and 6.8 truck engines.

dishboy
02-10-2010, 12:13 AM
I got 16 with A 04 SHORT BOX 4.2 5sp working , 18 empty in town and 22 empty @65

mr999
02-10-2010, 01:24 AM
2008 F150 4.2L 5 speed reg cab XL longbed 2wd with 8,000 miles at an area dealership listed at $15,950. Ok everyone, here's the same boring epic question: what's your opinion of this truck?
I have a small car that I love (esp at 26 average mpg) but I really need a light-duty daily-driver truck to knock around in so I don't have to take my 2003 GMC 2500HD 6.0 4x4 to every little sprinkler, pinestraw, or estimate job. Also, I am being serious about getting lawn maintenance accounts this summer, and might think of using this truck to haul a trailer and equipment. I know it's not a gargantuan tow beast, but it would fit the "daily driver" bill better than the 2003 GMC (also the GMC doesn't have A/C). I am easy on vehicles and equipment, and, most importantly, HATE AUTO TRANSMISSIONS. Does anyone use the 6 cyl/5 speed daily that could give me some imput?

Thanks. Roll Tide.

Don't worry about 5 spd, they all work fine, especially you are picking up some lawn accounts this summer, Ford 4.2 is not that soft like people trying to say. Towing a Z and a wb on a 12 ft trailer like most people do around here, I see everyday, not an issue.
The problem mostly will happen IF you pull heavy stuff like 3500-5000 lbs or more daily, is the brakes and clutch. These two things are weak on the F-150 manual tranny, mostly the rotors will be shot sooner than anything, then clutch worn out @ 80k or so.
Also, 4.2 is a very durable engine, I have seen many over 250 k , and a lot of them.
If I really want to get a manual tranny truck, I would get a least an F 250, so you don't have to worry about weight affecting your brake and clutch, they are built more beefy than the F 150, but if you can't afford or don't want to spend that money, so F 150 is okay. Think about people who still tow with a Tacoma or Ranger, Froniter....F 150 is way better.

hosejockey2002
02-10-2010, 02:42 PM
The 3.8 is an older design pushrod engine. The 4.2 is a Triton truck engine, same basic design (overhead cam) as the 4.6, 5.4 and 6.8 truck engines.

There I go, spouting off when I don't know what I'm talking about. The 4.2 is an Essex engine, similar to the older 3.8.

unkownfl
02-10-2010, 03:14 PM
Yes it is similar but its not just a bored out 3.8 as previous stated.

AWilsonCreativeServices
02-10-2010, 03:50 PM
Thanks guys-
looks like enough people have experience with this engine lasting awhile that I feel ok with looking into it. Sounds like there is a discrepancy with which architecture the engine has, OHC or pushrod...
Second Question-
I have heard that, if optioned with the 3.31 rearend, this truck is "gutless". People say the 3.55 is better, but, for $150 from Summit, I can get a 3.73 ring and pinion for the stock 8.8 housing. Has anybody done this swap? Supposed to help with starting under load and gives you a better gear so as to not ride the clutch with a trailer, etc. anyone done this conversion?

unkownfl
02-10-2010, 04:08 PM
You can put any gear you want in it. The newer models will make it more difficult to correct the odometer. On earlier years you can just change the gearing on the pickup but later models use a different method for the speedometer pick-up. The engine is a push rod and it was the last or one of the last ever used by Ford. I agree with the poster that it is a 3.8 based engine but it is not just simply bored out. They all have the same bore! they do however have a different crank and rods and most likely the piston has a different wrist pin height. Intake manifold is different and a few other things. Yes they may have been more brought back to the dealer, but 90% of the 4.2 trucks sold were for commercial use. I'm sure they were abused unlike the bigger V8 engines regular consumers bought. You don't seen any or very few 4.2 with any option other then base. V8 models almost always have higher options. To those that are confused OHV means it has over head valves not a camshaft that is over the cylinder head. All engines now a days have at least OHV.

unkownfl
02-10-2010, 04:15 PM
Going from a 3.31 to a 3.55 you will not feel any difference at all and if you do your amazing. Even going to a 3.73 you won't feel much of a difference. I would stay away from the summit racing gears go with the Ford racing gear as it will have almost no run out. Also you will need a shim kit and to do the swap right you can get away without having a tool to measure the pinion depth with the ford racing gears. You will however need a dial indicator and micrometer or dial caliper to do the job. Its messy and if you never did it before I would not recommend. Most shops will do the whole job parts included for under 500. One more thing you will need is access to a press for the bearings to get the old ones off. You can use a oven or grill and freezer to get them back on.

AWilsonCreativeServices
02-13-2010, 12:41 PM
Well then, would 4.10's help? Would that take too much off my top-end? And I guess I'd take it down to my mechanic to have it done, since I've never pulled gears before.

unkownfl
02-14-2010, 08:06 PM
Get the truck first. You won't have any need to change the gear for pulling 4000 or less.

kharrington
02-15-2010, 09:34 AM
Just wondering... Would the 4.2-liter v6 AUTO be ok for pulling around an 5x10 in town with lawn equip. on it?
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unkownfl
02-15-2010, 05:16 PM
It will be fine I pulled a 98 f-150 super crew on a trailer with my wright stander in the bed. I had zero issues and I had no problem going 70mph down the turnpike. Its a F-150 not a ranger and even a 4 cylinder ranger can handle a 5x10 with ease.

TXNSLighting
02-15-2010, 08:26 PM
It will be fine I pulled a 98 f-150 super crew on a trailer with my wright stander in the bed. I had zero issues and I had no problem going 70mph down the turnpike. Its a F-150 not a ranger and even a 4 cylinder ranger can handle a 5x10 with ease.

last i checked they didnt make super crews until 2000 or 2001...To the OP, yes that F150 will pull what youre needing to pull fine. get it.

castlerockmo
02-15-2010, 10:39 PM
I pulled a skidsteer and a 2200 lbs trailer one time in the early days of my company with my 02 4.2 5 speed. That was a little hairy when it came to breaking. But love that truck I have around 160,000 on it. Wouldn't trade that truck for the world.
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unkownfl
02-15-2010, 11:25 PM
pulled a super crew with my 98*