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easy way to clean the underside of a truck?


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  #1  
Old 10-26-2019, 09:47:43 PM
uglyblue66 uglyblue66 is offline
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Default easy way to clean the underside of a truck?

I haven't drove my 91 Ford 150 much the past year or 2 because it had a bad oil leak. I used to travel in it all the time.Pulled the camper to shows,Detroit, went to Chicksha Oklahoma back in 08 and so on.But it started getting weak and didn't run well,wouldn't pull.Plus the clutch was killing my leg.
So I got the goat the 04 Dodge.
It is down and I had already figured out the catalitic convertor was stopped up on the 91 had it on the table already.So the past week I have been working on the 91.I found the oil leak.BUT not until i wasted a whole day struggling trying to get the oil pan out to replace the gasket thinking that was the issue.I got a gasket on it but had to fish it around the oil pump. Anyhow,the leak, a BAD 1 ,was behind the air conditioning compressor.There is a plate,for servicing the lifters on a 4.9 -300 inline 6 and that gasket was curled up and not working at all.It appeared to have bee n that way along time.
Anyhow. The underside of the truck is oily.I had to take a shower with gojo the other night I got so dirty working under there.
What is a way of cleaning it up? Chemicals or?
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Old 10-26-2019, 09:58:45 PM
pegasuspinto pegasuspinto is offline
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Default Re: easy way to clean the underside of a truck?

Purple power works pretty good. Steam works pretty good. Mechanical action works pretty good.

Scrape/brush/disturb what you can. Spray the rest with straight purple power, then hit it with a steam cleaner if you can, high pressure if you cant, and just city water pressure if that is all you got. You might have to work it off in layers.

You can probably rent a steam cleaner, and that's the easiest way to get er done.
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Old 10-26-2019, 10:42:36 PM
Big Bird Big Bird is offline
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Default Re: easy way to clean the underside of a truck?

I say ... leave the oil on it, it's the best rust prevention that old f 150 will ever get.
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Old 10-27-2019, 12:30:18 PM
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Default Re: easy way to clean the underside of a truck?

Buy a case of oven cleaner. Spray on, let it fizz and foam a while and rinse off with garden hose or power washer.
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Old 10-27-2019, 02:17:29 PM
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FWurth FWurth is offline
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Default Re: easy way to clean the underside of a truck?

Oven cleaner will lift the paint, we use it to strip paint on the old equipment. I'd just leave the oil on it as it will help keep the rust down.
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Old 10-27-2019, 02:34:12 PM
Tracy T Tracy T is offline
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Default Re: easy way to clean the underside of a truck?

easy way, drive thru some tall grass. it will wipe it clean.
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Old 10-27-2019, 02:40:37 PM
Tracy T Tracy T is offline
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Default Re: easy way to clean the underside of a truck?

I remember those had problems with the oil pan gasket when new. you want to know the easy way on that one too? dont even bother taking the pan out just let it drop down enough that you can take a rag and some brake cleaner and wipe the pan and block clean. those had that one piece rubber or what ever they are made out of so nothing will be stuk to the pan or block. fish the new gasket over the oil pan and secure it to the block with those plastic alignment dowels they send with it, slide pan back into place and start all the bolts. I dont know how many i did the hard way before i got smart about it!
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Old 10-27-2019, 03:02:35 PM
Vanman Vanman is offline
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Default Re: easy way to clean the underside of a truck?

Some of the automatic car washers have a nice row of jets that spray the underside. Drive over it really slowly so it has time to work. Doubt it’s anything but just water, but it might get some oil off. Probably leaving enough to work as rust protection.
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Old 10-27-2019, 06:48:44 PM
uglyblue66 uglyblue66 is offline
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Default Re: easy way to clean the underside of a truck?

Thanks,I see that comment about rust! It just looks awful under there.But oven cleaner on the transmission,ibeams and such shouldn't hurt it,i may try that
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Old 10-27-2019, 09:28:37 PM
slip knot slip knot is offline
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Default Re: easy way to clean the underside of a truck?

Oil wont hurt the underside any, may even help keep the rust at bay. But I've found every old oil leaker I've had would eat the rubber parts up pretty quickly. Shock bushings and body mounts take a beating when they get oil soaked.
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