Go Back   Jeep Garage - Jeep Forum > Search Forums

Join Jeep Garage Today
Showing results 1 to 40 of 500
Search took 0.06 seconds.
Search: Posts Made By: jeepgcoman
Forum: Engine Performance/Intake/Exhaust 12-22-2014, 10:36 PM
Replies: 6
Views: 144
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: 144
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: 144
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: 131
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: 3
Views: 167
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: 170
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: 170
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: 170
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: 12
Views: 382
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: 12
Views: 382
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: 288
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: 7,723
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: 319
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: 353
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: 181
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: 181
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: 971
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: 971
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: 971
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: 971
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: 971
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: 6,615
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: 747
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: 747
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: 971
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: 353
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: 423
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: 353
Posted By jeepgcoman
Gearheads, Read and Weep.....maybe!

Looks like Big Brother is out to shut down us gearheads. What a bunch of BS.
...
Forum: Grand Cherokee - WK 11-30-2014, 02:15 PM
Replies: 38
Views: 12,018
Posted By jeepgcoman
Re: 20" inch and 22" inch rim Pictures

They're 265/45R20's in the front and 295/40R20's in the rear. Excellent tires, IMO. This is my 3rd set on two different vehicles. I have also had all of them siped.
Forum: Grand Cherokee - WK 11-30-2014, 12:29 AM
Replies: 38
Views: 12,018
Posted By jeepgcoman
Re: 20" inch and 22" inch rim Pictures

I've got the staggered chrome ones and run Toyo Proxes ST tires. Mine is also lowered with SRT bumpers. You won't be sorry once you get them on.
Forum: Grand Cherokee - WK 11-29-2014, 08:26 PM
Replies: 38
Views: 12,018
Posted By jeepgcoman
Re: 20" inch and 22" inch rim Pictures

Yes, if they're original Jeep, or aftermarket replicas made for the WK. I have them (20 in. replicas) on my 06 GCO.....no problems. Also, the ride difference between the 17's (more sidewall) and the...
Forum: Engine Performance/Intake/Exhaust 11-29-2014, 05:37 PM
Replies: 15
Views: 747
Posted By jeepgcoman
Re: Cold air intake

X2. You're right....more noise is about all you get.




Any internal combustion engine is just a pump, and can only process a given amount of air, depending on the displacement and RPM. The...
Forum: Engine Performance/Intake/Exhaust 11-26-2014, 09:44 PM
Replies: 32
Views: 5,794
Posted By jeepgcoman
Re: 4.7 turbo!

You're probably right on the MAP Sensor, but I am not too sure on the EGR, as I don't think the tuner folks will be able to set it correctly, and since it's part of the emission system, they may not...
Forum: Engine Performance/Intake/Exhaust 11-25-2014, 09:24 PM
Replies: 32
Views: 5,794
Posted By jeepgcoman
Re: 4.7 turbo!

I am not familiar with your 4.7 application. The items I commented on above are basic generalizations for most late model, computer controlled engines, when going from normally aspirated to forced...
Forum: Engine Performance/Intake/Exhaust 11-23-2014, 08:28 PM
Replies: 32
Views: 5,794
Posted By jeepgcoman
Re: 4.7 turbo!

What Ryan is talking about is replacing the actual fuel injectors with ones that will flow more fuel. The maximum flow rate of the stock ones probably do not support the amount of fuel required when...
Forum: Engine Performance/Intake/Exhaust 11-22-2014, 07:59 PM
Replies: 32
Views: 5,794
Posted By jeepgcoman
Re: 4.7 turbo!

Don't do that too many times or you'll be pulling the engine down and doing a rebuild. If you're getting a "lean pop" you're probably somewhere up around 16-17/1 air fuel ratio. You should be down...
Forum: Engine Performance/Intake/Exhaust 11-15-2014, 04:54 PM
Replies: 2
Views: 173
Posted By jeepgcoman
Re: #3 cylinder

What year, what engine, when was it last tuned up? Is this the only code that is showing?
Forum: Grand Cherokee - WK 11-12-2014, 05:00 PM
Replies: 0
Views: 165
Posted By jeepgcoman
Gasoline and the Internal Combustion Engine...a 1935 Cartoon

Here's a neat little cartoon that informed folks about how the gasoline engine worked. This was the infancy of the automobile industry, and I am sure cars were a big mystery to most folks at this...
Forum: Engine Performance/Intake/Exhaust 11-11-2014, 09:40 PM
Replies: 45
Views: 1,951
Posted By jeepgcoman
Re: SRT exhaust manifold install today!

I hear you on the blower and the transmission. While it would be nice to put a huffer on it, the price is out of sight and the early engine won't take enough boost to make it worthwhile. If you're...
Forum: Engine Performance/Intake/Exhaust 11-09-2014, 07:19 PM
Replies: 45
Views: 1,951
Posted By jeepgcoman
Re: SRT exhaust manifold install today!

Hey Luke, is everything working good now?
Showing results 1 to 40 of 500

 
Forum Jump

All times are GMT -5. The time now is 08:38 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by Chrysler Group LLC.