Mechanics

OIL PRESSURE WENT HIGH AND 3 CONNECTING RODS BURNED OUT

2001 Jeep Grand Cherokee • 170,000 miles

Hi,

I bought a GC Laredo 2001 to a lady, she told me that car was ok, I took it to my mechanic and he said that the motor sounded ok.

So I bought the car, and the very next day the oil pressure light went up, and a ticky ticky sound started on the engine. It turns out that 2 connecting rods have burned out and that the crankshaft will not be able to be rectified.

Please tell me why would something like this happen, and what is your advise on fixing it, new engine, used engine, jsut replace the deffective parts. Do you think that the woman who sold me did know about the problem?
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Ricardoquirozsueldo
October 4, 2012.




Was the engine oil level correct?
When taking delivery of vehicle, was there any abnormal engine noise? If the noise was there, most probably the previous owner would have known something about it.

With damage to the crankshaft and connecting rods. A replacement engine would be a better option.

KHLow2008
Oct 4, 2012.
There was no noice the noice started later when the engine was already ruined.
But the lady who used to have it, told me thatnshe had the refrigaratin system changed, fan and radiator.
Why not replacing just parts? Thanks

Replacing the parts could be as costly as replacing the engine as there are major damage to it.

KHLow2008
Oct 4, 2012.
I JUST GUESSED YOUR ENGINE SIZE

THIS IS A RE-MANUFACTURED ENGINE FROM A PARTS STORE.....TO ME IT'S JUST LIKE HAVING A BRAND NEW ONE

http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_spartan-remanufactured-amc-jeep-engine-spartan-atk-engines_20706538-p?navigationPath=L1*14923%7CL2*15031%7CL3*16033

JUST A WILD GUESS...I'D SAY YOU MIGHT GET YOURS "REBUILT" LOCALLY AT AN AUTOMOTIVE MACHINE SHOP, IF THE BLOCK/CRANK/AND HEAD ARE USABLE, FOR $1000-$1200

DEPENDING ON THE LOCAL SALVAGE YARD....A USED ENGINE MIGHT GO FROM $300-$1000.....THE LITTLE "SELF SERVE YARDS" SEEM TO BE LESSER EXPENSIVE....CALLING THEM SAVES TIME

POSSIBLY REMOVING AND TEARING INTO YOUR MESSED UP MOTOR, POSSIBLE MACHINING AND PARTS....WOULD BE JUST LIKE A "LOCAL REBUILD"....EXCEPT YOU ARE STILL STUCK WITH A MOTOR APPROACHING 200,000 MILES

"MY GUESSING" DOES NOT REFLECT "LABOR", IF YOU ARE NOT DOING THIS YOURSELF

OUT OF CURIOSITY---THIS PUPPY DID NOT THROW A ROD----WHEN YOU DID CHECK THE OIL LEVEL, AFTER THE FACT, HOW MUCH WAS IN IT?

AROUND HERE "AS IS" IS HOW MOST USED CARS ARE SOLD----SO REALLY, IT DOES NOT MATTER "WHAT WAS SAID".....THE ONLY THING THAT CARRIES WEIGHT IS SOMETHING IN WRITING

I CHECK WHAT I CAN CHECK ON THE SPOT...I EVEN PULL THE FILL PLUGS ON DIFFERENTIALS, TRANNYS ETC......I WANT THE BEST INFO I CAN HAVE BEFORE I BUY...SEE MY ANSWERS IN THIS LINK

http://www.2carpros.com/questions/2001-ford-f-150-grinding-noise-upon-light-braking

WHEN I GET THE VEHICLE---I CHANGE EVERY FLUID IN IT...ALL EXPENDABLES TOO (DIST CAP--FUEL FILTER--ETC)....I INSPECT THINGS LIKE THE BELTS AND MAKE A JUDGEMENT CALL.......I TRUST NO ONE!....NOW I CAN START AT "ZERO" WITH MY MAINTENANCE PROGRAM

IF YOU REALLY ARE FALLING IN LOVE WITH THE VEHICLE

FOR THOSE WHO DON'T KNOW HOW TO CHECK A VEHICLE WELL---ASK IF YOU CAN TAKE IT TO A SHOP FOR A FULL SCALE CHECK UP (NOT A "LOOKS GOOD--DRIVES GOOD" SHOP)

THIS WILL COST SOMETHING...FOR SOMEONE TO GO OVER IT WITH A FINE TOOTH COMB

IF THINGS DON'T WORK OUT WELL---TAKE IT BACK TO IT'S OWNER---SAY NOTHING ABOUT WHAT WAS FOUND WRONG! ! ! ! !

....UNLESS THE OWNER WANTS TO "BUY" THE "HEALTH RECORDS" YOU JUST PAID FOR!

I JUST CAN'T PICTURE ME, TELLING THEM, WHAT NEEDS TO BE FIXED...FOR FREE...WHEN I JUST PAID FOR IT!

IF THE INSPECTION WENT WELL....YOU HAVE PEACE OF MIND, KNOWING AN AUTOMOTIVE EXPERT, CHECKED OUT THE VEHICLE......NOT FRED, THE FLORIST, YOUR NEXT DOOR NEIGHBOR!

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CJ MEDEVAC
Oct 5, 2012.
They are offering me to change the whole engine but a 6v engine and not the 8v engine, in terms of economy I am fine with it. What do you guys suggest?

Ricardo

If the original is a V8 and you are replacing with a V6, it requires more than an engine replacement. The wireharness and engine computer would have to be replaced as well. What would the cost be like?

KHLow2008
Nov 1, 2012.
They told me $1500 this is in South America, so the price includes the shipping and everything the engines are here. They would keep my old engine

That would seem a reasonable cost if it includes everything.

KHLow2008
Nov 1, 2012.
Ok, $300 extra for the job of changing the engine and I believe $100 more for oil and staff


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