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Search: Posts Made By: jeepgcoman
Forum: Grand Cherokee - WK 01-24-2015, 07:47 PM
Replies: 5
Views: 166
Posted By jeepgcoman
Re: New to me Jeep

Times 2 on what Frank said. How many miles on it? In cold weather the transmission shift schedules are moified and it will hold gears longer until it warms up. This is normal. In cold weather it may...
Forum: Grand Cherokee - WK 01-22-2015, 03:55 PM
Replies: 12
Views: 458
Posted By jeepgcoman
Re: Free 2005 Grand Cherokee Advice

Check out Strongjeff's build thread: http://www.jeepgarage.org/f5/project-six-shooter-build-thread-68955.html
I am sure they make a big difference, as do the custom ones I had buiilt for my WK...
Forum: Grand Cherokee - WK 01-22-2015, 12:35 PM
Replies: 12
Views: 458
Posted By jeepgcoman
Re: Free 2005 Grand Cherokee Advice

If you're a gearhead, have the time/money/tools, just get a junkyard engine (I am sure there are plenty around for 05's-06's), throw it in and drive the snot out of it. If you do that, put some...
Forum: Troubleshooting/Problems 01-21-2015, 11:23 PM
Replies: 6
Views: 633
Posted By jeepgcoman
Re: Tire Pressure Monitoring System

See my Posts No. 28 and 39 on this thread: http://www.jeepgarage.org/f181/service-tire-pressure-monitoring-systems-help-10898-3.html Better yet, you may want to read the whole thread.

I had tha...
Forum: Grand Cherokee - WK 01-11-2015, 10:38 AM
Replies: 10
Views: 398
Posted By jeepgcoman
Re: Decided to T bone a Volvo today...

Glad it wasn't any worse and no one was injured. It looks like you can fix the body part yourself if you want. The airbags are a different story though. Good luck, and let us know the outcome.
Forum: Grand Cherokee - WK 01-09-2015, 09:54 PM
Replies: 2
Views: 208
Posted By jeepgcoman
Re: colling system

It's probably the same radiator, just by a different manufacturer. It would depend on whether you want to keep all OEM parts on it (more expensive) or go with aftermarket stuff, which is obviously...
Forum: Grand Cherokee - WK 01-09-2015, 05:04 PM
Replies: 10
Views: 398
Posted By jeepgcoman
Re: Decided to T bone a Volvo today...

Sorry to hear that, Luke, especially after all the work you've done to it lately. I am wondering why the passenger airbag blew with no one sitting in the seat? Did you have something laying on it?...
Forum: Troubleshooting/Problems 01-07-2015, 04:09 PM
Replies: 3
Views: 175
Posted By jeepgcoman
Re: Need advice on my 2006 GC Laredo

Welcome to the forum. A few comments, FWIW.

First, if the O2's are bad/going bad, IMO, IT IS A BIG DEAL. You may not notice a big difference in the way the vehicle runs (other than poor fuel...
Forum: Troubleshooting/Problems 01-04-2015, 05:12 PM
Replies: 13
Views: 388
Posted By jeepgcoman
Re: 05 overland bad mileage

Get a catch can and you'll, for the most part, eliminate the need for TB cleaning.
Forum: Engine Performance/Intake/Exhaust 12-29-2014, 07:58 PM
Replies: 1
Views: 151
Posted By jeepgcoman
Re: Magnaflow 16631 dimensions

Magnaflow 16631 is for a V8 5.7L. Product specs:
5 x 11 x 22in. Muffler; 2.5in. Tubing; 4.0in. Rolled Polished Stainless Tip; SINGLE STRAIGHT PASSENGER SIDE REAR EXIT

Their spec. sheet doesn't...
Forum: Engine Performance/Intake/Exhaust 12-29-2014, 07:44 PM
Replies: 9
Views: 1,009
Posted By jeepgcoman
Re: My 5.7 WK at the drags...I hope!

I am sure there is a difference because of the reduced load on the engine when turning the accessories. It's not really noticeable though. Supposed dyno tests show as much as about a 10 hp savings....
Forum: Engine Performance/Intake/Exhaust 12-29-2014, 05:26 PM
Replies: 9
Views: 1,009
Posted By jeepgcoman
Re: My 5.7 WK at the drags...I hope!

You've been too busy modding your Jeep, LOL.

Those runs were made before I did the throttle body (stock is 80mm, now it's 90mm), underdrive pulley (25% UD) and SOS coils (more than twice the...
Forum: Engine Performance/Intake/Exhaust 12-22-2014, 10:36 PM
Replies: 6
Views: 241
Posted By jeepgcoman
Re: 5.7 turbo tune

If you're going to run forged components you can run a bunch more boost too. That'll make it scream. Make sure you beef up the transmission a little too, before you run it too much. A shift kit and a...
Forum: Engine Performance/Intake/Exhaust 12-22-2014, 09:43 PM
Replies: 6
Views: 241
Posted By jeepgcoman
Re: 5.7 turbo tune

Cool!! I'd keep the boost toward the lower end...7-8 lbs. at most. Early on, over on the LX forums, when they first started messing with forced induction on otherwise stock motors, they grenaded lots...
Forum: Engine Performance/Intake/Exhaust 12-22-2014, 08:53 PM
Replies: 6
Views: 241
Posted By jeepgcoman
Re: 5.7 turbo tune

With a turbo you better get a custom Diablosport CMR (ChipMaster Revolution) or other tune specific to your application. Also, hope you're not running too much boost on a 5.7, unless you have forged...
Forum: Engine Performance/Intake/Exhaust 12-20-2014, 10:58 AM
Replies: 1
Views: 176
Posted By jeepgcoman
Re: 5.7l pistons

I don't know if there is a "horsepower rating" on the pistons, but I do know that they are fairly weak due to the top ring land being too close to the piston top. This is why you can't get away with...
Forum: Troubleshooting/Problems 12-20-2014, 10:50 AM
Replies: 4
Views: 281
Posted By jeepgcoman
Re: Power surge at off idle

What kind/weight oil are you using and is the level full? Do you have a way to check the oil pressure? That's the first thing I'd check AFTER I cleared the code to see if it comes back within a day...
Forum: Troubleshooting/Problems 12-19-2014, 09:37 PM
Replies: 5
Views: 237
Posted By jeepgcoman
Re: Hemi CEL codes

Yes, some codes will clear themselves after 3 "good" run cycles without the issue occurring again. Some will also go into a "stored" status, but won't trip a MIL (light) when they happen. Most of...
Forum: Troubleshooting/Problems 12-14-2014, 09:21 PM
Replies: 5
Views: 237
Posted By jeepgcoman
Re: Hemi CEL codes

It depends on how they cleaned the TB. They could have screwed it up. They're very sensitive and quite a few have toasted theirs by getting cleaning solvents/cleaners in and around the wrong places....
Forum: Troubleshooting/Problems 12-14-2014, 01:16 PM
Replies: 5
Views: 237
Posted By jeepgcoman
Re: Hemi CEL codes

First, I'd check the throttle body wiring between the PCM and the throttle body. On the P0507 code, the IAC is an integral part of the throttle body on the 5.7 and serviceable/accessible. I am...
Forum: Troubleshooting/Problems 12-12-2014, 10:40 PM
Replies: 13
Views: 534
Posted By jeepgcoman
Re: 08 5.7 Engine Shutting off while driving

Do you know what the code was?

First, how big is your keychain? If you have lots of keys and gizmos on it, it could have ruined the ignition switch. Even without, it could be bad. When you're...
Forum: Troubleshooting/Problems 12-12-2014, 05:37 PM
Replies: 13
Views: 534
Posted By jeepgcoman
Re: 08 5.7 Engine Shutting off while driving

Any codes showing up? Just a couple "WAGS"....the ignition switch or ASD relay/circuit. Is this unpredictable, or can you "make" it happen? If you can, have them hook their Starscan up and go for a...
Forum: Troubleshooting/Problems 12-11-2014, 03:41 PM
Replies: 3
Views: 335
Posted By jeepgcoman
Re: P0430 MIL error with EGR disabled

The EGR system reduces the combustion temperatures, which reduces the occurrence of NOX. It also allows for more timing to be run, because it reduces the incidence knock retard. My Hemi is moderately...
Forum: Engine Performance/Intake/Exhaust 12-08-2014, 10:05 PM
Replies: 71
Views: 7,948
Posted By jeepgcoman
Re: SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

They will go on, but everyone says they're a bigger PITA than putting the SRT's on. I had custom ones (mid length) built for my 06, and the guy said he'll probably never do it again, because of the...
Forum: Troubleshooting/Problems 12-07-2014, 08:26 PM
Replies: 9
Views: 372
Posted By jeepgcoman
Re: 2006 5.7 Trans shift problems

Just a heads up.....the Transmission Control Module (TCM) is an integral part of the Powertrain Control Module (PCM), and is only replaceable as a unit. R and R of this unit (located on the right...
Forum: Grand Cherokee - WK 12-05-2014, 05:58 PM
Replies: 7
Views: 432
Posted By jeepgcoman
Re: Gearheads, Read and Weep.....maybe!

Yep, they all have event data recorders ("black boxes") in them now.
Forum: Troubleshooting/Problems 12-04-2014, 08:22 PM
Replies: 4
Views: 214
Posted By jeepgcoman
Re: TPMS not reading correct wheel.

Possibly. Having the sensors read and comparing those readings with your EVIC readout, and also check them with a good gauge, will tell you where the fault lies, if it's a reading accuracy issue.. I...
Forum: Troubleshooting/Problems 12-04-2014, 11:52 AM
Replies: 4
Views: 214
Posted By jeepgcoman
Re: TPMS not reading correct wheel.

Go to a reputable tire shop and have them put their TPMS Sensor reading (diagnostic) tool on each wheel. It'll take less than 5 minutes to do all four. If they have a decent tool it'll read the...
Forum: Engine Performance/Intake/Exhaust 12-03-2014, 11:53 PM
Replies: 29
Views: 1,077
Posted By jeepgcoman
Re: Another Hemi Gas-Mileage Thread

It allow full adjustment of all up/down shift schedules (timing) and the torque management (shift firmness) for all upshifts and WOT. The DS Tuners only allow for some manipulation of 1st through 3rd.
Forum: Engine Performance/Intake/Exhaust 12-03-2014, 09:26 PM
Replies: 29
Views: 1,077
Posted By jeepgcoman
Re: Another Hemi Gas-Mileage Thread

I have the SC Flashpaq 3875. It's about 5 years old and I think they have newer ones out now. I had to download the ATT App. after I installed a tune. Back then it was a new add on. Don't know for...
Forum: Engine Performance/Intake/Exhaust 12-03-2014, 09:18 PM
Replies: 29
Views: 1,077
Posted By jeepgcoman
Re: Another Hemi Gas-Mileage Thread

Bet it was like day and night....I know mine was with the headers. And, yes, they're a PITA, but I imagine the long tubes are a bigger one than my mid length ones.
Forum: Engine Performance/Intake/Exhaust 12-03-2014, 05:03 PM
Replies: 29
Views: 1,077
Posted By jeepgcoman
Re: Another Hemi Gas-Mileage Thread

That's why I told him to do the SC UNLESS he's going to do some heavy modding. If you're going to go racing, then the DS is better. The DS also does not allow full adjustment and control of the...
Forum: Engine Performance/Intake/Exhaust 12-02-2014, 08:58 PM
Replies: 29
Views: 1,077
Posted By jeepgcoman
Re: Another Hemi Gas-Mileage Thread

I was talking about the stock intake setup. On the WK, unless you're going to do some heavy modding, just add a low restriction filter (like a K and N), and replace the intake tube between the airbox...
Forum: Troubleshooting/Problems 12-01-2014, 11:21 PM
Replies: 39
Views: 7,015
Posted By jeepgcoman
Re: service Tire Pressure Monitoring Systems.HELP

I can't imagine that Jeep is still using the same system they had in 2005-2007 but, if they are, just have them make sure that the TPMS sensor ID numbers for each of your wheels (and spare) are the...
Forum: Engine Performance/Intake/Exhaust 12-01-2014, 10:40 PM
Replies: 15
Views: 891
Posted By jeepgcoman
Re: Cold air intake

Good show, Jeff. Over the years I've messed with all kinds of CAI combinations, mostly on my Hemi LX. The hardest thing to achieve is to get rid of all the heat soak and have the temperature at the...
Forum: Engine Performance/Intake/Exhaust 12-01-2014, 09:26 PM
Replies: 15
Views: 891
Posted By jeepgcoman
Re: Cold air intake

IMO, that's a good decision. I am not sure but, if your airbox is the same as the 4.7/5.7's, it is capable of flowing around 700 cfm of air though it. Your 3.7 (~226 cu. in.) is only capable of...
Forum: Engine Performance/Intake/Exhaust 12-01-2014, 04:37 PM
Replies: 29
Views: 1,077
Posted By jeepgcoman
Re: Another Hemi Gas-Mileage Thread

This is true. If your ignition system is stock, run nothing but a good quality copper core plug gapped at .043-.045 in. I run nothing but NGK's in both my Hemi vehicles. I am in the process of...
Forum: Grand Cherokee - WK 11-30-2014, 10:21 PM
Replies: 7
Views: 432
Posted By jeepgcoman
Re: Gearheads, Read and Weep.....maybe!

I don't think it will either, but I'd do the same as you. Would sure set back the performance for us gearheads, and emissions programs for the smog nazi's.
Forum: Troubleshooting/Problems 11-30-2014, 09:00 PM
Replies: 8
Views: 455
Posted By jeepgcoman
Re: Soo this happen to anybody? SMH

What year is yours? It seems to happen on the 05's and some early 06's with some frequency. The valve seat separates from the head. I haven't heard of any later model ones doing this though. You're...
Forum: Grand Cherokee - WK 11-30-2014, 02:18 PM
Replies: 7
Views: 432
Posted By jeepgcoman
Gearheads, Read and Weep.....maybe!

Looks like Big Brother is out to shut down us gearheads. What a bunch of BS.
...
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