Knucklehead97 Posted December 12, 2014 Author Posted December 12, 2014 I let the truck run longer and geez... that idle jiggles the truck once it gets warmed up. And those little backfires are a little worse I think. I hear a light hissing sound which makes me think a vacuum leak, but its new and I think its my belt because the belt whistles sometimes in the cold. I also get exhaust pop frequently when revving. It hasn't stalled out. But then again I haven't cranked it again to test it because it was only stalling after I let it sit a few minutes when warmed up. I'm more worried about this idle honestly because its just so low and rough.
gogmorgo Posted December 13, 2014 Posted December 13, 2014 A fuel pressure gauge should not leak, and the leak could potentially affect the reading. The relief valve is for releasing pressure and fuel in a controlled manner, so fuel doesn't spray everywhere when you disconnect the gauge. If you do have a vacuum leak, it can lead to running rich, which can cause rough idle, backfiring, etc. Messing around with any vacuum components could have created a new leak.
Knucklehead97 Posted December 13, 2014 Author Posted December 13, 2014 I checked all over where I was working for a vacuum leak. Couldn't find any. And great, thats the only place I could find that had a fuel pressure gauge for rent. I'll check the other Oreillys I guess. I'm stumped on what to check next though.
gogmorgo Posted December 13, 2014 Posted December 13, 2014 If you tell them it leaks, they should replace it. Their tools should work properly, or there's no point in them loaning them out...
Knucklehead97 Posted December 13, 2014 Author Posted December 13, 2014 I'm going to mention it to them when I return it tomorrow. And continue searching for a vacuum leak of some sort. I may try resetting my throttle butterfly. Cruiser, you got anything for me to try now? Also gonna keep cleaning connections.
Dadinator Posted December 13, 2014 Posted December 13, 2014 Sledge hammer is what am thinking on mine next. i
cruiser54 Posted December 13, 2014 Posted December 13, 2014 I'm going to mention it to them when I return it tomorrow. And continue searching for a vacuum leak of some sort. I may try resetting my throttle butterfly. Cruiser, you got anything for me to try now? Also gonna keep cleaning connections. How are you checking for vacuum leaks? What hasn't been done connector cleaning wise?
Knucklehead97 Posted December 13, 2014 Author Posted December 13, 2014 Carb cleaner. And all I have done is the power distribution center and the grounds. Lost track during this mess. And dadinator... I feel you on the sledgehammer. Hands down the hardest thing to track down so far,
Knucklehead97 Posted December 13, 2014 Author Posted December 13, 2014 5 was already done and the ohms did not fluctuate or read bad at all. Perfect. 3 and 4 will hopefully be done Monday after work while waiting for Oreillys to get a new fuel gauge.
cruiser54 Posted December 14, 2014 Posted December 14, 2014 5 was already done and the ohms did not fluctuate or read bad at all. Perfect. 3 and 4 will hopefully be done Monday after work while waiting for Oreillys to get a new fuel gauge. Good plan.
Knucklehead97 Posted December 16, 2014 Author Posted December 16, 2014 Did 3 and 4 today. Did as many connectors as I could find. Also found that a small hole appeared in the side of the black vacuum line going into the firewall (i believe its the one that makes the heater blow through all vents) also found that the yellow line going into the CAD had broken off completely. Either of these effect anything? Fixed the black line as much as I could but don't have any caps for the yellow one. Kinda just wanna cap all the lines going to the CAD considering I want to eliminate it eventually.
cruiser54 Posted December 16, 2014 Posted December 16, 2014 Get rid of the vacuum source to the CAD and do the elimination mod. Vacuum leaks are not good.
Knucklehead97 Posted December 16, 2014 Author Posted December 16, 2014 Will cap them off ASAP. Gonna check in oreillys soon for a new fuel pressure gauge.
Dadinator Posted December 17, 2014 Posted December 17, 2014 Cad fix is about 1/2 hour. Do it. Still stalling i guess?
Knucklehead97 Posted December 17, 2014 Author Posted December 17, 2014 Waiting for the connectors to dry before I crank it. I expect it to still do it though. Any progress on yours? And do you have a low idle like I do? Oh and upon looking in the engine bay I noticed these two electrical connectors with yellow "caps" on them. They're right behind the line of 4 relays. What are these? Just curious.
cruiser54 Posted December 17, 2014 Posted December 17, 2014 Waiting for the connectors to dry before I crank it. I expect it to still do it though. Any progress on yours? And do you have a low idle like I do? Oh and upon looking in the engine bay I noticed these two electrical connectors with yellow "caps" on them. They're right behind the line of 4 relays. What are these? Just curious. That's where the diagnostic readout box connects.
Knucklehead97 Posted December 17, 2014 Author Posted December 17, 2014 I didn't know there was a way to connect a diagnostic thing to Renix 4.0's? How hard is it to come by a Renix diagnostic box? Because uh... I could use one right about now lol :D
Knucklehead97 Posted December 17, 2014 Author Posted December 17, 2014 If only bringing it to your house didn't require shipping it to another state lol. Do Dodge Jeep Ram dealers still keep Renix testers handy?
cruiser54 Posted December 17, 2014 Posted December 17, 2014 If only bringing it to your house didn't require shipping it to another state lol. Do Dodge Jeep Ram dealers still keep Renix testers handy? I don't think so. It's an individual decision. BUT, the Snap-On "Brick" AKA MT2500 will hook up if they have the adapters.
Dadinator Posted December 17, 2014 Posted December 17, 2014 Doubt if i touch mine until after the holidays. Busy household. Mine does idle low, but not excessively low i don't think.
Knucklehead97 Posted December 17, 2014 Author Posted December 17, 2014 Mine idles at about 400 so its pretty low. It may be connected to both of our problems. And from what I see those Snapon tools are... pricey.
Knucklehead97 Posted December 18, 2014 Author Posted December 18, 2014 Ill try and ask around. Most shops around here just treat me like a DA and tell me to bring it into their shop so "professionals" can deal with it.
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now