Burning Mercon???
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Junior User
Joined: Apr 2010
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From: Anchorage Alaska
Burning Mercon???
Does the ZF 5 speed (1990 F250) somehow burn mercon?
95% of my driving is off the highway, and about 1% of it is above 45mph.
I had to drive about 80 miles on the freeway today, and when I got up to 70mph, it sounded like there was a turbo under my tranny hump!
When I got home to check and fill, it was 3 quarts low!!
95% of my driving is off the highway, and about 1% of it is above 45mph.
I had to drive about 80 miles on the freeway today, and when I got up to 70mph, it sounded like there was a turbo under my tranny hump!
When I got home to check and fill, it was 3 quarts low!!
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Junior User
Joined: Apr 2010
Posts: 56
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From: Anchorage Alaska
Well, I filled it up last night, and this morning after driving to work it started dripping.
Because it's dripping from the inspection plate, and it's not pouring out, can I guess it's a crack in the front gasket near the top?
How much a$$ pain is that going to be to replace?
Because it's dripping from the inspection plate, and it's not pouring out, can I guess it's a crack in the front gasket near the top?
How much a$$ pain is that going to be to replace?
Cargo Master
Joined: Jul 2009
Posts: 2,538
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From: Des Moines
I don't know specifics about the ZF 5 speed, but the only way a tranny would be burning fluid is if it's getting really hot. If most of your driving is off road then it's possible you're putting too much stress on it. At the same time you should smell it if it's burning.
Being that low I'd say you definitely have a leak. The best I could suggest to locate it is to drive the truck around and get it up to temp, then crawl under the truck to look with the engine running.
Being that low I'd say you definitely have a leak. The best I could suggest to locate it is to drive the truck around and get it up to temp, then crawl under the truck to look with the engine running.
Postmaster
Joined: Apr 2008
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Why do you care for the trans temperature? It ain't no slushbox with clutches and stuff to burn up, it's all gears inside, heat won't be anywhere near as harmful to your trans that it is to say an E4OD. Also, you don't even have a torque converter, and that's where most heat is generated in an auto transmission...
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Junior User
Joined: Apr 2010
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From: Anchorage Alaska
I'm planning some serious rebuilding and upgrading this summer, and I want to keep an eye on everything.
The truck sat, without running, for over a year in Alaska while I was away.
I'm assuming (and I know how much trouble that word can get me in) that the gasket dried out, then cracked when I fired it up (right away!) and drove it away.
The truck sat, without running, for over a year in Alaska while I was away.
I'm assuming (and I know how much trouble that word can get me in) that the gasket dried out, then cracked when I fired it up (right away!) and drove it away.
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Junior User
Joined: Apr 2010
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From: Anchorage Alaska
Just the inspection plate is wet, with very little blowback.
I don't know if these markings make sense to anyone, or if one of the tranny gurus can look at this and think of a common problem.
I don't mean to flood you guys with this issue, I just want to know as much as I can before I drop it this weekend.
Again, thanks to everyone just for looking.
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