Originally Posted by 91TwighlightGT
10. Kia 2.0l I-4. Found in the sportage. It's Kia from the 90's, and it ain't pretty.
No experience with these, don't even know what they look like.
9. Cadillac Northstar 4.6 V-8. Maintenance nightmares, that are hideously expensive. A blown headgasket, although not tooo terribly common, was the death sentence for the Northstar, since removing the headbolts also meant stripping out the block. Decent power, but the oil leaks and general reliability combined with the cost leave a lot to be desired.
The thing I find worst about these is the lame coolant manifold on the back of the engine, coupled with the same style silicone gaskets that led to the demise of many a 3100.
8. Mitsubishi 2.4L I-4. Cough, cough. Too...much...smoke. Can't... see... I hired some galants to drive by my house and kill mosquitoes. I think they burned more oil than gas.
Actually that can be said of any Mitsubishi. 3.0L Caravan anyone?
7. Chrysler 2.0L I-4. Nothing like a head gasket to pour oil all over the rear of your engine. Chrysler decided to make sure that you knew you had oil in your car, mostly by leaving stains on your driveway. It's saving grace is that the head gasket on a 4-banger isn't quite as expensive as the V-6's and V-8's to come later.
This one is kind of interesting in that it wasn't usually the head gasket itself. It was electrical arcing killing the gasket, and sometimes the head and block, due to an insufficiently grounded head. Part of the fix for these was to install a grounding harness.
6. Ford 3.8L V-6. Too many head gasket problems, poor power production, noisy and harsh. And Ford used it for 20 years.
I think this overstates the problem. It was a head gasket materials problem that Ford handled badly. Toyotas had an even bigger problem with head gaskets in their 3.0L at about the same time but handled the issue well and you never hear about them anymore.
5. GM 3.1/3.4L. Famous for their intake leaks and subseqent head gaskets, and dumped into just about any mediocre mid 90's to early 00's, wouldn't have been so bad if not for the intakes. I think their intake bolts came loose from the factory.
4. GM 3.4L DOHC (POS). Terrible to work on, with an oil pump drive shaft O-ring that calls for removal of the rear head to replace, and loves to leak like a 2 year old with a full bottle of orange juice. Interference engine = new engine when the timing belt goes (with regularity) and overall cost for something that isn't that special leaves this one with a poor score.
3. GM 2.4L "Quad Four". Much like the 3.4L DOHC, the quad is a steaming pile of crap hiding under the guise of high tech DOHC goodness. Don't let if fool you.
They're GM's what do you expect?
2. Chrysler 2.7L V-6. Found commonly in the Intrepid/Concorde/LHS/Sebring, the oiling problems on this engine are legendary. Of course, it is much easier to blame it on the customer for not changing their oil at the specified times, rather than admit the real problem that oil sludging clogged up the oil passages and created a ticking time bomb that would make you wish that Chrysler did the lifetime warranty circa 1999.
Even better they had a run of bad rod bolts which caused spun bearings and made the oiling issue seem even worse to the public than it was.
1. Cadillac 4100. 'Nuff said.
Pretty much a steaming pile. A lot had flat cams, usually not noticed by owners other than a lack of power. Those long head bolts were to tie the head bolt stresses into the main webs and get them away from the cylinder bores. Just another symptom of the destruction of Cadillac as a premium brand by trying to move downmarket and starving the division of the money needed to be what they should have been