upper gasket
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Joined: Mar 2006
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upper gasket
I have a 1996 ranger 4.0 4X4 my question is. when i look at the upper manafold it looks like it has moisture coming up the side i know i have to replace the gasket so i am wondering if this might be what is causing the high rpm's after the truck goes into high gear. it goes into high gear at 2000 rpm's and it will down shift right away and rev up to 2500 at 55mph by 65 it's 3000 could this be a vacuum leak?
Thanks
Any help would be appreciated.
Steve
Thanks
Any help would be appreciated.
Steve
Freshman User
Joined: Feb 2008
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From: Killiney Beach, B.C.
I just did my upper intake and fuel rail gaskets, as well as injector O rings and EGR O ring on my 96 4 litre. My codes were 0171 and 0174 but my rough running was at idle or low rpm? I had previously cleaned my maf sensor but I don't think it needed it? Are you sure the apparent moisture is condensation from some other source?
Mountain Pass
Joined: Nov 2004
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Steve,
Your Ranger is known for having problems with the intake gaskets as well as the transmission valve body gasket. Here are a couple links that might get you headed in the right direction.
https://www.ford-trucks.com/forums/3...irst-gear.html --Transmission valve body gasket issu
https://www.ford-trucks.com/forums/2...ke-gasket.html -- Intake gaskets
Your Ranger is known for having problems with the intake gaskets as well as the transmission valve body gasket. Here are a couple links that might get you headed in the right direction.
https://www.ford-trucks.com/forums/3...irst-gear.html --Transmission valve body gasket issu
https://www.ford-trucks.com/forums/2...ke-gasket.html -- Intake gaskets
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Guy's
I think it is gas i'm seeing the truck has 278.000 highway miles on it and never had any problems till now. I change oil every 3 or 4000 miles only changed the egr valve a few years back and normal tune-ups just had trans rebuilt because o\d light was flashing now thats ok. the truck starts up fine seems the rpm's are running high in neutral around 1000 and when its' going starts out around 2000 and then drop's to 1500 in 2nd and 3rd starts to go up to 2000 when it hits high gear at 55 mph thats when the engine rev's to 3000 rpm's and slowly drops to 2500 by 65 or 70 its running at 3000 rpm's you can feel it kick down when it goes into high and all of a sudden mabye 3 seconds later it rev's and and stays high thats why i'm wondering if this could be caused by a vacuum leak someplace. then if i shut the truck off for ten minutes or so it then starts rough like some plugs are not firing i'll give it gas and start moving and then she runs fine. my mechanic can't find anything wrong . This has me stumped thats why i'm hoping someone here has seen this before.
Thanks
Steve
I think it is gas i'm seeing the truck has 278.000 highway miles on it and never had any problems till now. I change oil every 3 or 4000 miles only changed the egr valve a few years back and normal tune-ups just had trans rebuilt because o\d light was flashing now thats ok. the truck starts up fine seems the rpm's are running high in neutral around 1000 and when its' going starts out around 2000 and then drop's to 1500 in 2nd and 3rd starts to go up to 2000 when it hits high gear at 55 mph thats when the engine rev's to 3000 rpm's and slowly drops to 2500 by 65 or 70 its running at 3000 rpm's you can feel it kick down when it goes into high and all of a sudden mabye 3 seconds later it rev's and and stays high thats why i'm wondering if this could be caused by a vacuum leak someplace. then if i shut the truck off for ten minutes or so it then starts rough like some plugs are not firing i'll give it gas and start moving and then she runs fine. my mechanic can't find anything wrong . This has me stumped thats why i'm hoping someone here has seen this before.
Thanks
Steve
