Engine stumbling problem
#1
Engine stumbling problem
I have searched several forums including this one and I haven't found the exact symptoms I am experiencing. Here's the deal. When my tuck is cold with the heat/defrost/etc. turned on the engine stumbles at idle. When the gas peddle is pushed it idles erratically but once it is up to speed there is no longer a stumble. I'm not experiencing any power loss, etc. Just wondering what this stumble is?
I have some ideas, abut I want to see what you all think first.
Thanks!
I have some ideas, abut I want to see what you all think first.
Thanks!
#2
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Cory, you might want to check your connection from the brake master cylinder to your intake manifold where you sucked in the seafoam. thats most likely where your leak is. if this isnt the case you can use a can of carbeuretor or throttle body cleaner and spray around your intake, master cylinder and all other vacuum hose connections while the truck is running and idling erratically. if at any point in time while spraying different areas you hear a jump in idle rpm above the norm... you've found your leak. isolate and repair as necessary.
#5
#7
So if the vacuum on my 4X4 system doesn't work, then the leak could be from there? Or is it too far from the engine to make the idle erratic? It would suck to have to fix this, even though I don't use it to make my engine stop stumbling. But if that is what I have to do, then....
Also I have a bit of a leak in my exhaust just before the muffler, could this hinder the problem?
Also I have a bit of a leak in my exhaust just before the muffler, could this hinder the problem?
#8
#9
Yeah, I have been planning on getting rid of the vacuum system on the 4wd and blocking them off. I just need the dough. I didn't think the exhaust leak would do anything (but maybe give me bad gas mileage). So I guess I start searching the vacuum system tomorrow. I don't really know where to start but I will get my Haynes out tonight and have a looksy.
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