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twilson
DTO Newbie
Joined: 25 Sep 2005
Posts: 38
Location: Hutchinson, Kansas
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 Posted: Sun Sep 25, 2005 1:02 pm Post subject: 95 Ram 360 Plenum ?'s |
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I am new to the forum here. I have a 95 Ram 1500 360 I bought new. Its a creme puff and has a tad over 94000 miles. I run Mobil 1 oil and it gets all the maintance it needs. Truck uses no oil and has performed great.
Now to the bad part..........
Last week I went on an 800 mile trip pulling about 5000lbs between a trailer and in the bed. Truck ran great and got 13.5mpg in the process.
Coming home with empty truck and car trailer my AC started to not work. It eventually stopped working and the truck seemed down on power. I turned off the AC and the truck ran fine. I did manage to get home but it appeared to use a LOT of gas in the process. Upon inspection of things the AC compressor clutch/pulley was bad. I then discovered the fan wobbling after I took the belt off and the water pump was shot in a bad way. Coolant was down in the radiator. After replacing the water pump and decided to check the oil and noticed it was down. This scares me as the truck has never used a drop of oil. I estimate at least a quart low. It still shows on the dipstick. The water temp and oil pressure were normal on the trip and never showed any signs of problems. After looking at things I am lucky I made it home I think.
The big question now is the plenum gasket shot? The symptoms see to be exactly how others have experienced.
The air cleaner is clean so no oil is getting in there. The truck is still not put back together so I cant run the vacuum test. I was thinking about just replacing the plenum gasket as I am half way there with having the front of the engine off.
Here is a picture I snapped with my camera. I think the intake looks fairly clean. Dont know if others can tell for sure. I have worked on older vehicles a lot but this is my first time tearing into a new vehicle.
Its a big file.
http://www.chargerfever.com/intake.jpg
Just wondering what others think about my situation. Thanks!
Todd |
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amc racer
DTO Silver Member
Joined: 26 Jul 2005
Posts: 511
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| Posted: Sun Sep 25, 2005 1:52 pm Post subject: |
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Depending on how hot it got with the low coolant and towing, you may have just burned it off.
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69 AMC 12.79@105.9 4,200 lb barge with a 33 year old engine (Car Craft June/05)
99 Ram 2500 CC/LB CTD 4X4 , full Magnaflow stainless 4", Edge EZ, AFE
There's no such thing as too much truck.
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tony debolt
DTO Gold Member
Joined: 14 Jan 2003
Posts: 1178
Location: PHOENIX AZ
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| Posted: Sun Sep 25, 2005 3:33 pm Post subject: |
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Kind of hard to tell by the pic, but for that old of a truck I would do the plenum gasket. It is probably blwon to some degree. Some the symptoms would be pinging more than normal and oil inside the manifold.
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02' QC Ram 5.9L Sport Vortech V1 S/C, M1, Cam Cal, Eddy heads, Scorpion RR, ARP studs, Cometic head gskets, Gibson headers and exhaust, MSD6BTM, MSD coil, APS 52MM TB, Snow 2-stage water/meth injection, 180* t-stat, Amsoil,
Audio: 2 Infinity Kappa Perfect 10'S Fosgate BD500 @2 OHMS PICTURES, DYNO GRAPH |
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twilson
DTO Newbie
Joined: 25 Sep 2005
Posts: 38
Location: Hutchinson, Kansas
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| Posted: Sun Sep 25, 2005 10:23 pm Post subject: |
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| tony debolt wrote: | | Kind of hard to tell by the pic, but for that old of a truck I would do the plenum gasket. It is probably blwon to some degree. Some the symptoms would be pinging more than normal and oil inside the manifold. |
I am going to go ahead and replace it. The truck doesnt ping. I used to run 91+ octane gas in it all the time and had no troubles with ping. The computer went out of it under the 8 yr 80000 emission warranty and the new computer would even run the 90 octane ethanol gas without ping. The old computer wouldnt run good on the ethanol.
Does anyone have a picture of what a bad plenum gasket will look like?
Will I have to bleed the injectors like on a diesel when I put it all back together? How does one get the air out of the fuel rail?!
Todd |
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b1llyw
DTO Diamond Member
Joined: 08 Dec 2001
Posts: 2771
Location: Connecticut
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| Posted: Mon Sep 26, 2005 3:58 am Post subject: Hey Todd |
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Glad to see you outside of DiRT. 
http://www.bionicdodge.com/Download/Intake_Manifold_Gasket_Replacement_318_360_Magnum.PDF
That will help you on the gasket install. If you still have the front of the motor apart, I'd throw a new timing chain in at the same time with 94K on the clock. Good insurance.
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Bill White - KRC Performance
'03 Durango SLT 4x4, 5.9, F&B 50mm Throttle Body, Superchips, No-Name Catback Exhaust |
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twilson
DTO Newbie
Joined: 25 Sep 2005
Posts: 38
Location: Hutchinson, Kansas
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| Posted: Mon Sep 26, 2005 9:21 am Post subject: Re: Hey Todd |
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Thanks for the info. So there really isnt a need to bleed the injectors unless theres a problem? Thats the only thing I am worried about it getting the injectors off the manifold and then back on and ready to go.
DiRT is great but its lacking knowledge and info anymore. Seems no one gets dirty fixing their truck anymore. Maybe I should just go buy a diesel!HAHA!
Todd |
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Sneezer
DTO Senior Member
Joined: 23 Jul 2004
Posts: 491
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| Posted: Mon Sep 26, 2005 9:50 am Post subject: |
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I didn't do a thing to my injectors when I swapped manifolds. Just pulled them off and set the fuel rail to the side.
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1992 318 CC. Red/sand peeling paint, hail damage and dented bed, white camper top.
"She may not look like much but she's got it where it counts kid. I've made a lot of special modifications myself."
Mopar PCM, K&N Filtercharger, M1 intake, relocated IAT to intake tube, Autolite 3923 plugs, 180 thermostat, home ported/polished TB, Mopar 6AL ignition, Blaster SS coil, MSD 8.5mm plug wires and coil wires. Everything else is stock with 188k miles.
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Bigg_billy
DTO Silver Member
Joined: 03 Aug 2004
Posts: 629
Location: WESTFORD, MASS 01886
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| Posted: Mon Sep 26, 2005 12:13 pm Post subject: Plenum |
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No need to do anything more with the injectors than keep them clean, replace the o-rings and put a little vaseline on them when you pop the fuel rail back on...
http://www.dodgetrucks.org/forums/viewtopic.php?t=54255
Bill
_________________
1997 RAM 1500 2WD AUTO
CLUB CAB 5.2 LITER
180 Thermostat
Brass cap & Rotor
New Plenum Gasket
MSD Coil
Westin Side Pipes
New Exhaust, New O2s
75,000
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twilson
DTO Newbie
Joined: 25 Sep 2005
Posts: 38
Location: Hutchinson, Kansas
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| Posted: Mon Sep 26, 2005 12:33 pm Post subject: Re: Plenum |
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Thanks for the info. We will tear into it this friday. I hope I can have things all back together with a full day and evening to go at it. I sure hope that gasket is my problem with the oil being gone.
Todd |
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b1llyw
DTO Diamond Member
Joined: 08 Dec 2001
Posts: 2771
Location: Connecticut
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| Posted: Mon Sep 26, 2005 12:39 pm Post subject: Okay |
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I should add that it would be a great time to do a quick port and polish on your kegger.
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Bill White - KRC Performance
'03 Durango SLT 4x4, 5.9, F&B 50mm Throttle Body, Superchips, No-Name Catback Exhaust |
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Bigg_billy
DTO Silver Member
Joined: 03 Aug 2004
Posts: 629
Location: WESTFORD, MASS 01886
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| Posted: Mon Sep 26, 2005 12:40 pm Post subject: Test |
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I don't know if you did the test for plenum gasket failure, but the best is to disconnect the hose form the intake manifold to the pcv and block the hose and pcv (one person). Then start the truck and have the other person disconnect the hose from the oil breather to air duct, and check for vacuum. There should be a slight positive pressure, no vacuum. If there is vacumm then you know the plenum gasket is gone.
Bill
_________________
1997 RAM 1500 2WD AUTO
CLUB CAB 5.2 LITER
180 Thermostat
Brass cap & Rotor
New Plenum Gasket
MSD Coil
Westin Side Pipes
New Exhaust, New O2s
75,000
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twilson
DTO Newbie
Joined: 25 Sep 2005
Posts: 38
Location: Hutchinson, Kansas
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| Posted: Mon Sep 26, 2005 12:43 pm Post subject: Re: Test |
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| Bigg_billy wrote: | I don't know if you did the test for plenum gasket failure, but the best is to disconnect the hose form the intake manifold to the pcv and block the hose and pcv (one person). Then start the truck and have the other person disconnect the hose from the oil breather to air duct, and check for vacuum. There should be a slight positive pressure, no vacuum. If there is vacumm then you know the plenum gasket is gone.
Bill |
Yeah I am aware of the test. I discovered the ac pulley and waterpump being shot and tore it down to replace. Decided to check the oil after the fact and it was down. The truck does not run right now. I havent put the pieces back together and figured since the front part is tore down I might as well put a new plenum gasket in in hopes that is the oil problem. I hate to get it all running again and do the test and then have to tear it down again.
Todd |
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twilson
DTO Newbie
Joined: 25 Sep 2005
Posts: 38
Location: Hutchinson, Kansas
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| Posted: Mon Sep 26, 2005 10:12 pm Post subject: |
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So educate me here..........why did Dodge have this plenum cover on the intake?! Do Chevy and Fords have them as well?
Todd |
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