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Search: Posts Made By: bigredscowboy
Forum: 4.0 SOHC / 4.0 OHV Tech 03-17-2016, 05:22 PM
Replies: 1
Views: 499
Posted By bigredscowboy
Re: Fuel trims bank 1 +, bank 2 -

Just saw where negative is rich and positive is lean. So starting off lean and getting rich. WTF?
Forum: 4.0 SOHC / 4.0 OHV Tech 03-17-2016, 05:18 PM
Replies: 12
Views: 1,902
Posted By bigredscowboy
Re: '04 SOHC ticking on startup, idle, and under load

Come listen to mine when you're bored. It's loud with brand new chains and guides, front and rear.
Forum: 4.0 SOHC / 4.0 OHV Tech 03-17-2016, 05:16 PM
Replies: 8
Views: 840
Posted By bigredscowboy
Re: okay, so im pretty disappointed...

have you tested the maf and iac? there's a decent writeup if you google it
Forum: 4.0 SOHC / 4.0 OHV Tech 03-17-2016, 05:13 PM
Replies: 7
Views: 700
Posted By bigredscowboy
Re: Reoccurring problem with Cylinder 3

have you/he tried new wires and coil?
Forum: 4.0 SOHC / 4.0 OHV Tech 03-15-2016, 08:42 PM
Replies: 1
Views: 499
Posted By bigredscowboy
Fuel trims bank 1 +, bank 2 -

I have a superficial knowledge of stft and ltft. At idle I get 0% ltft on bank 1 and -12% on bank 2. Under load I'm getting 3.91% on 1 and -3.91% on 2. To me, this looks like I have an air leak...
Forum: 4.0 SOHC / 4.0 OHV Tech 03-15-2016, 08:33 PM
Replies: 12
Views: 1,902
Posted By bigredscowboy
Re: '04 SOHC ticking on startup, idle, and under load

Valves? Does it calm down at all afte an oil change?
Forum: 4.0 SOHC / 4.0 OHV Tech 02-17-2016, 09:38 PM
Replies: 39
Views: 1,881
Posted By bigredscowboy
Re: rough start and rough idle

Might also want to check PCv valve. It should rattle when shaken in the same plane as the air flow
Forum: 4.0 SOHC / 4.0 OHV Tech 02-17-2016, 09:18 PM
Replies: 39
Views: 1,881
Posted By bigredscowboy
Re: rough start and rough idle

Did you clean your iac and maf? Could it be an 02 sensor? I believe a cold sensor causes more gas. Not sure what a failing O2 sensor does to it a/f mixture

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I also had a clogged...
Forum: 4.0 SOHC / 4.0 OHV Tech 02-17-2016, 09:01 PM
Replies: 4
Views: 646
Posted By bigredscowboy
Re: Replacing LH valve cover and gasket

https://m.youtube.com/watch?v=7DYpjfW_Hlc
Forum: 4.0 SOHC / 4.0 OHV Tech 02-17-2016, 08:45 PM
Replies: 4
Views: 646
Posted By bigredscowboy
Re: Replacing LH valve cover and gasket

Isn't LH drivers? Either way, you just have to get all vacuum and gas crap out of the way. Six 8mm (long socket) bolts with some creative extensions. It should come off. I take the intake off if I'm...
Forum: Exhaust and Mufflers 02-17-2016, 07:47 PM
Replies: 5
Views: 630
Posted By bigredscowboy
Re: Front cat fell apart... what can be salvaged?

No codes? Passed inspection?

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I think I want to keep it stock since I may be selling soon. Has anyone had luck with cleaning one simply by shaking the gunk out? As stated the rear...
Forum: Exhaust and Mufflers 02-17-2016, 06:40 PM
Replies: 5
Views: 630
Posted By bigredscowboy
Re: Front cat fell apart... what can be salvaged?

You recommend buying the whole y-pipe ($232) or the universals ($50 each) and having an exhaust shop cut and weld them in?
Forum: Exhaust and Mufflers 02-17-2016, 03:50 PM
Replies: 5
Views: 630
Posted By bigredscowboy
Front cat fell apart... what can be salvaged?

So I had a bogging problem at 2500 RPM. CEL blinking misfire but no codes stored. Idled fine but not under load. No power, fuel economy slowly got awful in the last year (8-10mpg). Changed several...
Forum: 4.0 SOHC / 4.0 OHV Tech 02-16-2016, 06:58 AM
Replies: 7
Views: 656
Posted By bigredscowboy
Re: Fuel pressure test on sohc?

Jdu, no codes. Had a brief misfire flash but it didn't stop anything. Now won't drive enough to throw a code.

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That's actually the damper and is expressly stated in the service...
Forum: 4.0 SOHC / 4.0 OHV Tech 02-15-2016, 08:13 PM
Replies: 7
Views: 656
Posted By bigredscowboy
Re: Fuel pressure test on sohc?

Yeah, I changed the fuel filter and have made a dozen other changes trying to fix a cutting out around 2k rpm. Screwed the fuel tester in better this afternoon (still nothing to put the vacuum on)...
Forum: 4.0 SOHC / 4.0 OHV Tech 02-15-2016, 09:46 AM
Replies: 7
Views: 656
Posted By bigredscowboy
Fuel pressure test on sohc?

Can anyone explain the fuel pressure test procedure for sohc when there is no regulator to plug vacuum line into. Just plugged into the Schroeder off the back of passenger rail I am only getting 50...
Forum: 4.0 SOHC / 4.0 OHV Tech 02-15-2016, 09:43 AM
Replies: 1
Views: 647
Posted By bigredscowboy
Re: Putting 4.0 SOHC motor back in need help

Haynes doesn't list this for soho but ey should be roughly same as ohv:
Mount insulator to frame nuts: 71 to 94 ft lbs
Mount insulator to bracket nuts: 65 to 85
Mount bracket to block: 45 to 60
...
Forum: 4.0 SOHC / 4.0 OHV Tech 02-15-2016, 09:25 AM
Replies: 39
Views: 1,881
Posted By bigredscowboy
Re: rough start and rough idle

Clogged injectors? Clogged cat?
Forum: 4.0 SOHC / 4.0 OHV Tech 02-14-2014, 08:46 AM
Replies: 3
Views: 803
Posted By bigredscowboy
What a failed chain tensioner does

Driving the 1-mile home from work and noticed lots of noise. Got it home and the front of the driver's valve cover was cracked. Pulled it and noticed the guide was destroyed. Finally got...
Forum: 4.0 SOHC / 4.0 OHV Tech 02-14-2014, 08:35 AM
Replies: 4
Views: 2,277
Posted By bigredscowboy
Re: Leaking Oil: front Crankshaft Seal - 2004 4.0 SOHC

old threat, but for posterity's sake:
I always use the center bolt to pull the harmonic balancer off. Unscrew all the way and then leverage the puller against the head of the bolt. Works every...
Forum: General Tech 01-17-2014, 02:02 PM
Replies: 14
Views: 860
Posted By bigredscowboy
Re: tensioner failed? (not guide)

The changes began earlier with the six spring main (camshaft) tensioner over the old three spring. I bought my '03 truck with a cracked block from a piston and when I opened it up the main tensioner...
Forum: General Tech 01-17-2014, 07:52 AM
Replies: 14
Views: 860
Posted By bigredscowboy
Re: tensioner failed? (not guide)

I'm certain that the tensioner plunger was the problem. It all happened in an instant--although I can't remember if it happened at startup or while driving (1-mile trip). The question is, how did...
Forum: General Tech 01-17-2014, 06:52 AM
Replies: 14
Views: 860
Posted By bigredscowboy
Re: tensioner failed? (not guide)

I'm assuming we are talking about the same part (pictured below). While the plastic on the guide was broken to bits, its more curious that the silver plunger was nonexistent on the tensioner....
Forum: General Tech 01-16-2014, 01:35 PM
Replies: 14
Views: 860
Posted By bigredscowboy
Re: tensioner failed? (not guide)

In this motor, it is arguably inevitable. Three separate plastic guides, one of which Ford recalled because they realized that most were failing. Albeit, if one were to actually change the guides...
Forum: General Tech 01-16-2014, 09:08 AM
Replies: 14
Views: 860
Posted By bigredscowboy
tensioner failed? (not guide)

Has anyone ever had a timing tensioner actually fail? On the way home last night (cold but not freezing), something knocked and then a rattling noise in the engine bay. I thought I had picked up a...
Showing results 1 to 25 of 40