Aircraft Component Repair Frequently Asked Questions
Sandy asks…
4×4 transfer case Vacuum Line disconnected?
ive got a 92 4×4 dodge dakota on ramps about to drop the transmission.. it wont go into gear and park doesnt work.. it keeps rolling when in gear the bell housing area makes a grinding noise … and no movement could the vacuum line to the transfer case cause it not to move into gear at all or at least not let the driveshaft spin? 2 hoses one to the intake manifold and one coming from a canister in the back towards the front of the engine are disconnected i do not know where the canister leads at the front also
thank you for your response.. i was on a forum earlier and told them which i didnt include here… but the transfer case is in Neutral and the 2 lines are for the case.. could it roll in park if the transfer case is in neutral? the response i had htere said that i needed it to be in eitiher 4L 4H or 2H for it to work in any direction and what ive looked up they say that the transfer case pump may not work without the vacuum line.. i apologize for this being so sloppy im typing in gloves as my hands are really greasy lol
OH! and the grinding sounded like a power steering pump but WAS coming from the bell housing area i cant say for sure it was the bell housing possibly the steering Mechanism? again sorry for the craziness
sorry again.. its not as much a grind noise as a whine if that helps more ive been up all day and have had 2 red lines
admin answers:
Well, it’s pretty difficult to say what the deal with the vacuum lines is from your description. But I can’t think of any way that one being disconnected would let your car roll while in Park, no matter what they’re for. There’s no engine vacuum with the engine off, so it wouldn’t hold when in Park normally, if that were the case.
There should be one going from the intake manifold to the transmission, for your shift modulator. But that only affects the timing of your vehicle shifting into a higher gear. It wouldn’t have anything to do with rolling in Park, or with not moving at all while in gear either.
Other than the vacuum line angle, the rest of your post makes me suspect that your torque converter flex plate has broken. This is the part that connects between your engine’s crankshaft and the transmission torque converter.
That would keep you from moving while in gear, and would also explain the noises. Even if that’s the case though, the parking pawl should keep the vehicle from rolling while in Park.
Mark asks…
How should I transport my audio gear?
Hey! I just purchased a p.a. system for my folk band. We playing a house show where they don’t need us to being the full p.a., just mics and cables.
I don’t have any sort of case for these things. They are still in their original boxes. What’s the best way to transport my equipment?
admin answers:
You need to BUY a wheeled transport case. Look on a site like Musician’s Friend, Sweetwater, etc. If you intend to WORK in the business, you need to spend a little to get set up. I have worked full-time in professional music and music education since 1971 – never worked ONE DAY in anything else – and probably have spent into 6 figures on instruments and all the necessary equipment, advertising, etc, in that time. So does anyone in any professions – my cousin reminds me that his socket tools (mechanic) cost what a good piano costs. So – take the stuff out of the boxes ( how tacky . . ) and get some foam-lined cases. Frankly, gun cases work well, and you can put wheels on several models. But invest in yourself – get decent stuff.
Added – you should also get your own complete set-up – even a Passport system, or if you have $$$ – the Bose tower with woofer. Looks nice – works great – easy to move. Not everyplace is going to supply the mains, and you also need some monitors – nothing worse than not being able to hear yourself . . .
Ruth asks…
What modifications other than motor mounts do I need to make to my Jeep before I can put a SB Chevy in it?
I want to put a SB Chevy in my 1991 Jeep YJ. Will I have to change the transmition or can I get away with just changing the bell housing on my stick shift? What about the T-case? What mods are need there? I have a dana 35 in back with 4.10 gears will that be enough gear to turn over 33′s? 35′s? Will the drive shaft need cut?
admin answers:
You probably got an AX15 + NP431 behind the 4.0lt.
Check Advence Adapters for the transition to the new engine, it is going to be the best choice meaning the splined shaft that goes from the engine to the tranny, because if you go for the chevy tranny + transfer for the 350 is going to be much more work + labor.
If you keep the tranny – transfer you won’t need to mod either nor the driveshaft.
You have a Dana 30 + Dana 35, if you won’t be rockcrawling, go with the 35″s + 4.10, (I’ve this combo with D44s) when you start breaking shit in there get the chromolly parts. Or change the axles.
I just made the conversion and used the chevy combo 350+TH400+NP205. As soon as I’m sure it works fine will change the axles to D60+14bolt.
If you’re going to use it enough in off road try the Holley 670 CFM Truck Avenger, 4-Barrel, Square Bore, Single Inlet, Vaccuum Secondary, Electric Choke ’cause gives you plenty of angle and make sure that you use a dual plane intake manifold, so you can get more torque in lower RPM.
E-mail me if you need any help.
Chris asks…
looking for Ford transmission gear heads?
ok heres the deal i have an 1988 F-250,it has the 351w EFI,it currently has an automatic trans in it & in looking to swap it for the 5 speed stick,now i have a 1990 F-150 5.0 EFI,4×4 with the 5 speed stick now,im wondering can i seperate the 5 speed from its transfer case & use it in the F-250 or would i have to hit the junk yard for a 2 wheel drive model?I now people say its alot of work to convert from auto to manual but not really,& the truck is in awsem shape, now the 1990 thats another story it is all rotted and a blowen motor.if it will work can i use the tail housing from the auto since the 5 speed does not have one since it goes in the transfre case,also will the auto flex plate work,becouse when i took the 5 speed 4×4 out i took it up to the car wash to rinse it off & well i forgot the flex plate at the car wash went back for it but was already gone.if u can help with advice please do,,thanx so much…
admin answers:
You can convert it, the mounting studs should be under the dash for the pedals and such, just have to fasten it in place. The 4×4 will have a different output tailshaft housing due to the transfer case mounting. If both are AODE transmissions, you will have to find a 2 wheel drive tailshaft housing to mount the 4×4 manual into the automatic truck, and also use the flywheel and driveshaft from the manual truck. The only thing you are missing from my point of view is the extension housing for the transmission to mount the 4×4 trans to a 2wd truck.
Laura asks…
Transmission fluid is spraying out of where the bell housing connects to the engine on my 1994 ford ranger?
It is spraying like crazy when the engine is running when im in park prolly more while in gear. about 9 months ago I felt my transmission slipping and didnt realize it was cuz i was low on fluid. but eventually did and started putting about a quart a week in just to get to work and to the store and stuff. Now all of a sudden today I drove it on the freeway pretty far and when I got back I noticed it was popping out of gear so I go put a whole quart in. Then it was fine but about twenty minutes later was popping out of gear again. I put another quart in and now it is spraying on the ground like crazy when the engine is running. It is spraying from the bottom of the bell housing between the transmission and engine. It is spraying from whats looks like a designated spot in case this happens. ?????? Well Im not too much knowledgeable about this and im thinking its a blown seal.
Does anybody know whats wrong. I dont want any answers to take it too a shop. Im going to do the work myself. But im wondering if its a gasket or a seal on the transmission or something wrong with the torque converter. I dunno…the thing sat for 8 years .. just started driving it a year ago. leaks tranny fluid, power steering fluid, brake fluid, and oil. lol Please help…
1994 Ford Ranger XLT extended cab
4.0 engine 160k miles
2×4 with the towing kit and tranny cooler.
admin answers:
Your trans is an A4LD. Notorious for taking out the front pump bushing. You could remove the trans and rebuild the pump. But, sounds like your best option is to replace the trans with either a known good used or, if you really like the truck and plan to keep it a while, a reman trans would be best.
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