Jasper EnginesComplaints and Reviews

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    • Quality or durability 7
    • Warranty issues 6
    • Do not buy from jasperengines com 3

I am on the second engine from jasper. The first engine made it 150 miles before the distributer gear was eaten up by the wrong gear inserted during build of the 351w. Jasper replaced this motor with no questions asked and had good customer service. The second engine has made it 1500 miles and leaks profusely from both front and rear main seals. I am very dissatisfied with the quality of the... Read more

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I BOUGHT A MOTOR AND TRANSMISSION FROM MY MECHANIC. HE TOLD ME JASPER IS THE WAY TO GO. BOY WAS HE SELLING ME. FROM DAY ONE THE ENGINE LEAKED OIL FROM DIFFERENT PLACES, THE INTAKE MANIFOLD GASKET BLEW IN JUST 8K MILES, AND A ROD RIGHT THROUGH THE BLOCK. THESE MOTORS ARE JUST GARBAGE. I'M STILL WAITING FOR THE NEW MOTOR TO COME IN. ON TOP OF ALL THAT, I HAVE HAD THE ENGINE FOR ALMOST 2 YEARS AND... Read more

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replace factory 3.8 with jasper rebuilt, drove it 191,738 miles without any abnormal issues, before selling the vehicle, 1995 windstar van. van is sill in operation, running fine with 289,118.3 miles on the same jasper rebuilt engine. sold it to a friend. todays motors work fine, if you keep clean oil and the right amount of oil in the engine. which a complete necessity to maintain the... Read more

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never again, i believed the hype too. I bought a ford 5.0 vin and had it installed, by the end of the warranty period (9000) miles later...leaks all over...oil pan, rear main seal....exhaust manifold leak, oil leak got worse obviously on a 180 mile trip home. When I left for the trip it was full, went , came home next morning to work three qts down...blown motor... Hunk of junk, installer in... Read more

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I put in a 4000.00 Jasper transmission and it failed 8 months after the warrantee period was out. I had two separate problems with the transmission that the shop that put it in could never find when they had it. None of that matters to Jasper. No matter the circumstances if there is an ounce of space for them to squeeze out of helping you they will. They charge the most, promise the most and do... Read more

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JASPER Engine rebuild....What a miss leading name 2motors less then 3 years niw need a head replaced on the second obe because their so called EXPERTS put in false cavle seats incorrectly and they came loose and veat the head up to the oint tgat ut xan't be rebuilt or ysed as a core. My 6yr old grandson would of been a better chiice to have rebuikd my 1st motir WHAT A BUNCH OF LOUSY NO GOOD SHADE... Read more

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Jasper engine almost three years old and no problems. I come in here and read these reviews because jet sells millions of products a year and only a handful of people come on here and comment. Mist be doing something right. Not saying every product is the best because people aren't machines. If I had to do it again I would install a jasper twice. Add comment

Our mechanic talked us into a "new" engine--right from the start we told him there was something not right. Another mechanic agreed and called him. Short story--took the truck back 4 times, one time a Jasper rep was there and said it was OK-total of 5 rental cars--then the engine finally "blew" leaving us stranded on the turnpike at about 2:00 AM. Turns out a piece was "left out" of the engine... Read more

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My jasper motor is still under its 3 yr/100,000 guarantee. My engine ran hot but I had antifreeze in it. My Nissan died. Now I just bought another car for the same price that jasper motor was. Rip off Add comment

I bought the line that Jasper remanufactured the best diesels and could be relied on. $13,000.00 and 29,000 miles later, and my rear main starts leaking just out of the year warranty. Thanks for nothing Jasper! I'll be buying and recommending elsewhere. Read more

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