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#4490790 - 08/17/17 07:53 AM Used Cars with Replaced Engines
ET16 Offline


Registered: 10/28/08
Posts: 1270
Loc: MD
I'm going the look at a used car (2005 MPV van) today with a replaced engine. I don't think that I've ever looked at a car with a replaced engine. Besides the obvious, what should I look out for?

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#4490795 - 08/17/17 08:06 AM Re: Used Cars with Replaced Engines [Re: ET16]
glock19 Offline


Registered: 03/12/13
Posts: 764
Loc: Virginia
I would want proof that the engine swap was done by a reputable shop. If the seller told me he did it himself in his garage, I would pass.
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#4490798 - 08/17/17 08:11 AM Re: Used Cars with Replaced Engines [Re: ET16]
MarkM66 Offline


Registered: 10/19/10
Posts: 1544
Loc: stl
I would be concerned with who did the work. It's easy to mess things up when doing something like and engine swap; mess up a plug connector, break or crimp a wire, break a sensor, etc.

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#4490801 - 08/17/17 08:18 AM Re: Used Cars with Replaced Engines [Re: ET16]
Vladiator Offline


Registered: 01/04/16
Posts: 728
Loc: NC
Just make sure the engine runs right, make sure the CEL lights up upon start and turns off, and make sure there are no leaks around the engine and between engine and transmission. Also check the oil cap for sludge buildup. If the cap has sludge - the rest of the engine does too, and usually a lot worse than the cap.


I've replaced a few engines in my friend's shop (he has a lift, duh) and every time the engine had less miles than the car. For example - last car was Lexus IS300 with 134k that I put an engine in with 100k miles. Did I have the paperwork to prove anything? No. Did I tell the new owner about the "new" engine when I sold the car at 170k miles? No. The car is still driving out there. Last time I checked - it was at 220k.
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Thicker oils give protection for severe operations such as driving in mountains, pulling a boat, dusty conditions, short trips, high rpm, overloading, overheating and overcooling. Thin oils give MPG.

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#4490804 - 08/17/17 08:26 AM Re: Used Cars with Replaced Engines [Re: ET16]
jeepman3071 Offline


Registered: 04/15/10
Posts: 4220
Loc: Storrs, Connecticut
Was it replaced with a new/rebuilt engine or a junkyard engine with unknown history?
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#4490815 - 08/17/17 08:37 AM Re: Used Cars with Replaced Engines [Re: ET16]
bioburner Offline


Registered: 09/19/16
Posts: 1418
Loc: Minnesota
I did a motor swap on the Ford Transit, mated it to a totally rebuilt tranny with papers now in the glove box. Original engine had 180k. The donor was a engine with under 40k. 6 months no issues but was a Ford trained mechanic that I assisted for better or worse.
Basically look at the paper trail if the work was done by reputable shop and replacement was checked out.
Saved me big $$$ and have a very nice drivable vehicle that with proper care will last easily another 180k without issues.
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#4490816 - 08/17/17 08:37 AM Re: Used Cars with Replaced Engines [Re: ET16]
Donald Offline


Registered: 03/21/04
Posts: 20461
Loc: Upstate NY
It could be a plus is a reman engine or a negative if a junkyard engine that the PO did himself.

Some vehicles like my 2001 Jeep GC 4.0 are likely to need an engine by 100,000 miles due to piston skirt cracking.
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#4490823 - 08/17/17 08:44 AM Re: Used Cars with Replaced Engines [Re: ET16]
BigD1 Offline


Registered: 08/12/15
Posts: 2575
Loc: NC
Find out if it has a remanufactured, rebuilt, crate, or used engine. If it has a reman with paperwork, I would definitely consider it. I bought my Oldsmobile with a low mileage Jasper reman, and it has been a good engine so far.

http://accurateengines.com/difference-between-rebuilt-remanufactured-crate-engines/
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#4490832 - 08/17/17 08:54 AM Re: Used Cars with Replaced Engines [Re: jeepman3071]
Vladiator Offline


Registered: 01/04/16
Posts: 728
Loc: NC
Originally Posted By: jeepman3071
Was it replaced with a new/rebuilt engine or a junkyard engine with unknown history?
Newly rebuilt - $2000-$3000. Used from a junkyard, that is sparkling clean under valve cover - $600. I think the choice is obvious here. Plus the junkyard engines comes with all the sensors and most of accessories & wiring- which means less labor in swapping that over from the old engine.
_________________________
Thicker oils give protection for severe operations such as driving in mountains, pulling a boat, dusty conditions, short trips, high rpm, overloading, overheating and overcooling. Thin oils give MPG.

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#4490852 - 08/17/17 09:19 AM Re: Used Cars with Replaced Engines [Re: ET16]
zzyzzx Offline


Registered: 05/18/12
Posts: 4372
Loc: Baltimore, Maryland, USA
I had a Jasper engine put in my 1995 Escort in 2001. I'm still driving the car too. In this particular case it's a big plus since the Jasper won't drop a valve seat.

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#4490859 - 08/17/17 09:28 AM Re: Used Cars with Replaced Engines [Re: ET16]
madRiver Offline


Registered: 07/11/15
Posts: 3538
Loc: New England
A replaced engine adds no value to a vehicle despite what the poor sap who paid for it thinks. So make sure you pay for mileage on odometer not that 30k engine.

2005 is good because if sensor or item not correctly installed the Check engine is on. Make sure it illuminates when in on position but motor not running.

My Subaru had major engine work due to valve burning requiring engine removal. Not a single issue but mechanic is Subie expert. He said it started first attempt no lights after the install.


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#4490861 - 08/17/17 09:31 AM Re: Used Cars with Replaced Engines [Re: ET16]
Ethan1 Offline


Registered: 12/29/14
Posts: 1632
Loc: 'murica
If the car runs right and there's no check engine light, what is there to worry about? What could you mess up during an engine swap that would not cause a no-start, a driveability issue, or a CEL?

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#4490866 - 08/17/17 09:33 AM Re: Used Cars with Replaced Engines [Re: Vladiator]
jeepman3071 Offline


Registered: 04/15/10
Posts: 4220
Loc: Storrs, Connecticut
Originally Posted By: Vlad_the_Russian
Originally Posted By: jeepman3071
Was it replaced with a new/rebuilt engine or a junkyard engine with unknown history?
Newly rebuilt - $2000-$3000. Used from a junkyard, that is sparkling clean under valve cover - $600. I think the choice is obvious here. Plus the junkyard engines comes with all the sensors and most of accessories & wiring- which means less labor in swapping that over from the old engine.


The answer is obvious - if I was to swap an engine for myself.

Buying a car with a swapped engine I would prefer the one with paperwork and a warranty over the one some guy swapped in his garage. I trust my own work not other people's work.
_________________________
2000 Jeep Cherokee 4.0L (180k) - Pennzoil 10w30, Napa Gold 1516, Magnefine trans filter
2009 BMW 328i (32k) - Castrol Edge Euro 0w40, MANN HU816X

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#4490871 - 08/17/17 09:42 AM Re: Used Cars with Replaced Engines [Re: Ethan1]
glock19 Offline


Registered: 03/12/13
Posts: 764
Loc: Virginia
Originally Posted By: Ethan1
If the car runs right and there's no check engine light, what is there to worry about? What could you mess up during an engine swap that would not cause a no-start, a driveability issue, or a CEL?


Re-using old parts that should be changed like gaskets or belts.
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#4490880 - 08/17/17 09:48 AM Re: Used Cars with Replaced Engines [Re: zzyzzx]
tig1 Offline


Registered: 01/03/09
Posts: 13661
Loc: Illinois
Originally Posted By: zzyzzx
I had a Jasper engine put in my 1995 Escort in 2001. I'm still driving the car too. In this particular case it's a big plus since the Jasper won't drop a valve seat.


I(myself and Dad) put a Jasper 6 cyl engine in a 66 Chevy in 1972. It performed very well.
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