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Newbee 360 No Power Sucking Air Like a Vacuum Cleaner
03-11-2009, 05:30 PM
Post: #1
 
Help, #1 son called and said truck not running right, limped it home, engine starts ok, but has big sucking sound and no power wont hold 2000 rpm. engine check light on (son said sometimes blinking on way home) Cant check code - no reader. Pulled the air cleaner - back of air horn has big time vacuum leak thru the top centered behind throttle butterfly's . There is a device bolted to the back of air horn with wires connected: What is it and do u think its causing the vacuum leak?

thanks for any comments
98 1500 4x4 360 quad cab
197K miles

Pulled plugs seemed ok, clean no oil.
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03-11-2009, 05:34 PM
Post: #2
 
Lets See you have a Throttle Postion Sensor where the throttle shaft goes thru, a Map Sensor and a IAC Sensor on front or back....

what part of MD you from?

Rick




2001 Ram 2500 CTD - 5.9L Bored .20 Over, Block Decked .10, 12v Headgasket .20 Over, II PhatShaft 62/14, Edge HOT JUICE, Edge Jammers 4's, HD Tranny, Raptor Fuel Pump, 4" Turbo Back Exhaust, BHAF

1993 D350 Dually, Converted to W350 SRW, Converted to a Short Bed Wheelin' Rig on 38.5's
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03-11-2009, 05:41 PM
Post: #3
 
Grasonville

Engine has no power, sounds a like big vacuum leak.

bob
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03-11-2009, 05:49 PM
Post: #4
 
Didnt know what a IAC was till now - do u think the IAC Idle Air Control could cause the no power issue. If the iac is back mounted on the 98 ram 360 then that might account for the huge sucking sound. Could it have failed open?
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03-11-2009, 05:56 PM
Post: #5
 
The Idle Air Control or MAP could cause a major vaccum leak. Put the Air hat back on the throttle body and take a windex bottle or some sort of spray bottle filled with water....Start spraying around the intake and Throttle body and sensors....You'll hear a change in the engine RPM and you will find your leak.

Rick




2001 Ram 2500 CTD - 5.9L Bored .20 Over, Block Decked .10, 12v Headgasket .20 Over, II PhatShaft 62/14, Edge HOT JUICE, Edge Jammers 4's, HD Tranny, Raptor Fuel Pump, 4" Turbo Back Exhaust, BHAF

1993 D350 Dually, Converted to W350 SRW, Converted to a Short Bed Wheelin' Rig on 38.5's
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03-11-2009, 07:03 PM
Post: #6
 
my 94 made the vacumn sucking noise. threw the computer on it and changed the oxygen sensor and egr valve and no problem no more..




Jeff <BR>1996 dodge ram 2500 CTD, silencer ring MIA, 5\'\' straight pipe, cfm intake mani, bhaf. much more to come
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03-12-2009, 06:06 AM
Post: #7
 
could it be a clogged cat? i had that issue on my cherokee and it was a very very clogged cat....maybe make that your last resort so you dont go hacking the exhaust or anything




flynn<BR>1996 Dodge Ram 1500 billet grill, chrome bed rails, vortex dual exhaust, pioneer head unit, other goodies coming soon<BR><BR>SOLD~~1988 jeep cherokee 4 1/2 inch lift on 33s(finally). stock 4.o liter. soon to have a few appearance mods and engine mods~~SOLD<BR><BR>SOLD~1990 fullsize bronco - push bar, aftermarket hood and tail lights, tonnue style soft top 32\'s more to come~SOLD
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03-12-2009, 11:34 AM
Post: #8
 
Autozone will read the codes for free as will Advance Auto Parts.

Or on some trucks you can flip the key on and off pretty fast 3 times and I think it will give give a code. I know mine does it and I think it's 3 times. Then post the code on here and someone can tell you what it is.




2001 Dodge Ram 1500 SLT Laramie Off Road Package with 360
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03-12-2009, 03:36 PM
Post: #9
 
Thanks for all the responses, My orginal post was weak on detail, I cant drive the truck to autozone for the free diag, so I got a reader (Harbor freight $99) its says random multiple cylinder miss fires detected. P0303,P0304,p0305 & P0307 thats a lot of stuff not working so I pulled the distributor cap, all the [censored] had crud on them. Feeling stupid for dropping a 100 on OBDII diag for something so obvious, replaced cap and rotor, nothing changed still missing. Did I say that the cap is a bee-och to get to. Reader still says same stuff.

Heres my plan for tomorrow pull the cap make sure igniton wires arent pinched (positive they are ok but will check again) trace all wires to make sure I didnt get them mixed up (do not think I did). Inspect cap and rotor make sure they still look like new.

Then what..... any suggestions? Where is the ignition control module can i test it is it a high dollar item?

thanks
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03-13-2009, 12:39 PM
Post: #10
 
have you pulled a plug yet to see what they look like on the ones that are missing? if you hadnt done maintenance on it often enough to catch the rotor and cap, i would try starting with a regular tune up. Wires, plugs, check all fuses, etc. then you can go from there into things that arent as easy to replace... cat, O2 sensors etc.

i feel for you man, its a long process but just cover your bases and go from there.




Founder of the Anti Truck-Nutz Club. <BR>(i hate those things)<BR><BR>“Oh, you hate your job? Why didn\'t you say so? There\'s a support group for that. It\'s called EVERYBODY, and they meet at the bar.”<BR>- Drew Carrey<BR><BR>2001 Ram QC Sport 5.9L 4x4<BR>4.56\'s, E-locked front, Detroit locked rear<BR>new leaf packs w/ ORD Zero Rate
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