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Found 7 results

  1. I bought a used 2013 Spark (w/ automatic transmission) about a month ago - it has high mileage (83k) but I had it inspected before I purchased - my mechanic said everything, including engine and transmission, were in great shape except the tires, which I had replaced a few weeks ago. However, in the last 3 weeks, the car has stalled 3 times. Twice it happened while taking a sharp right turn, slightly uphill, at a slow speed, while in my parking garage at work (after driving only about 2 miles from home). The third time it happened when my boyfriend was driving the car — we had just gotten off the freeway after driving about 30-60 minutes, and he was making a sharp right turn into a parking lot. I brought my car to a mechanic, who took it to a Chevy dealership for me. The dealership had my car for 5 days and claimed they could not get the car to stall for them, so they couldn't diagnose the problem. They handed the car back to me. Today, I had the car at my mechanic to fix a leaking coolant surge tank. He did the repair, then took the car for a quick test drive. At the end of the drive (only a couple minutes), he made a sharp left turn into a parking spot, put the car into park, and then the car stalled again. I am so baffled as to what the issue could be, since my mechanic and the Chevy dealership have been unable to diagnose it. My mechanic said that when it stalled for him, it felt like the car thought it had run out of gas (I had about 1/8 of a tank of gas when it stalled for him, and at least 1/4 tank every other time it has stalled for me). He checked the computer, and nothing is showing up (no check engine light or anything, either), so he doesn't think it's an engine or transmission problem, but instead something with the fuel system or an electrical/wiring issue. He is looking into this for me, but in the meantime, I have a potentially dangerous car that I really want fixed. Has anybody had ANY similar problems, or have any thoughts on how to diagnose or fix?? I love this car, and it seems to be in good shape otherwise. I know the mileage is high, but I want this car to work for me for at least another year or two... Please help!
  2. I see that the car is still under Powertrain Warranty which should cover these repairs. Other warranty expired already. What should I know or take with me before I go to the dealership to have them repair/replace the engine ? I have records of all the oil changes. Will they give me a rental ? I don't know what to expect during this whole process, but ultimately I hope they car repair this without any out of pocket costs. I am not going to complain if I don't get a rental car or if they take around 3 weeks to fix this. But I just want to know what to expect. I see about a half an inch layer of oil floating above the coolant inside of the coolant reservoir tank. I read that this means that there is a leak in one of the head gaskets or a piston is damaged or going to be blown. I checked the dip stick and the engine oil looks good. I do not hear any loud knocking noise in the engine just a very faint clicking sound which may be normal. I do notice loss of power in acceleration and sometimes it feels like it misses/slips a gear. My MPG dropped from 45 to 36. I have never driven the car longer than half an hour as I make short commutes, and I accelerate lightly. So I do not see how the engine could have possibly overheated. Temps here do reach high 90's for many months during the year. Any advice or feedback would be highly appreciated.
  3. We are 90% done with removal of the engine and transmission from a 2014 spark with manual shift. It is not real obvious how the shift linkage cables disconnect from the transmission. Can someone offer any help on this? Here is an image of where the linkage goes into the bracket. There is an orange plastic part that appears to be some type of retainer.
  4. OK..I have noticed a few members ask what the correct compression in PSI is for the 1.2L Spark engine is. With the compression ratio at 10.5:1 the correct compression is 152-PSI at sea level and about 148-PSI at elevation of 1,000ft ASL. Average is 150PSI at 500ft ASL. Of course ambient temp and elevation play a fairly small part in the PSI #. As you can see the difference between sea level and 1,000ft does not produce much of a difference..the ambient temp variation is even less. Surprising as it may seem, all engines of all types have the exact same PSI at the same compression ratio. For example: a 6L-V8 with a compression ratio of 10.5:1 also has the same PSI as the 1.2L Spark engine...This is all calculated with a universal formula that takes into consideration the compression ratio, above sea level altitude and ambient air all engines with the same compression ratio have the exact same PSI at piston TDC. With the Spark 1.2l engine, it was determined that the critical PSI # is 70psi. At 70psi the cylinder, valves etc are considered damaged to the point of engine replacement..thus, during the PCV fiasco GM ordered the engine to be replaced if one or more TDC cylinder readings were at or below 70PSI. Just though I would share this info since I have seen this question pop up not only here but on many car forums. Although the formula is fairly simple, you need to know the pressure (PSI) at your altitude..If anyone wants it here it is (atmospheric psi (ASL) x compression ratio (ie:10.5) divided by 1= your engine PSI at TDC. You will rarely have all cylinders exactly the same PSI but the variation should not be much ie:7lbs for the Spark and more on big V8 engines. Usual symptoms of a big variation is lots of vibration at idle. NOTE: Some mechanics will tell you the cam angle, specially on a dual cam variable phasing system (DCVP-VVT) the compression PSI will vary..although true, obviously the PSI pressure when valves are open or partially open is not the PSI pressure that should be used. Others will tell you the PSI should be about 18-20 times the compression ratio..also incorrect. Engine size (displacement) and volume of air in a cylinder also has no bearing on PSI as we are dealing with pressure, not volume. The age old standard for a PSI reading is piston at TDC with all valves on that cylinder closed and the only way to get that reading is to have the engine rotate 5-6 times using a locking gauge that will lock the reading at the highest PSI. This is done with the fuses for ignition and fuel pump removed..we want the engine to crank without ignition and without fuel flying into the gauge or all over the place. A big engine with the same compression ratio as a small engine will have more HP only because it has a greater volume of air at the same PSI as the smaller engine. Sorry, can't get more detailed than that..'Nuff said.
  5. Yesterday I did a 'stress test' on my 2013 Spark/Auto. There is a long flat road with very little traffic and I drove the Spark at 100mph with A/C on for about 50 mile set on cruise, stopping only to turn around then another 50miles at 100 mph back. That's really pushing it and no issues. The oil was checked afterwards and after lots of high speed trips since my last oil change about 3500mi ago the oil was still at the top on the dipstick. Anyone else driven your Spark hard and fast?
  6. Engine

    I have had my Spark for 1 year. I have had so many problems with it. Shifts Erratic Down shifts while driving Wont shift at all, usually traction control light is on & transmission light comes on but not always Motor ticks like a lifter is ticking burns and consumes oil up!! #4 Spark plug fowled but was fixed Oil Smells like gas
  7. So another issue I've had with my Spark. When I first got it I noticed and issue with the valve gasket about 4000 miles into owning the car. Puddles of oil were building up right by the valve cover. I showed the dealer and they ordered the part, which took 3 weeks to get from South Korea. They fixed it and the problem was solved, I thought! It's starting to do it again (23000 miles) but not as bad. I've attached photos of what it's doing. Has anyone else had any issues like this?? I've looked at other used Spark pictures and have seen some with this issue and some that don't. Thoughts?