Ask Bob: VW Losing Power
by Bob DeP.
I have 1985 VW Jetta Car, which has about 120,000 miles on the 1.8 liter engine. The problem I just notice is that I am seeing a lot of black smoke coming out the exhaust pipe and I am also noticing a decrease in power when I accelerate. A couple of months ago I changed plugs and wires and rotor cap. What's wrong? Would a compression check tell me more? If yes to the last question , what thing am I looking for and what does it mean. Any advice would be most appreciated.
When doing a compression check, you want all of the cylinders to be within 10 percent of each other. If you have a low one, then it could be bad valves or rings. You would need to do a leak down test to further diagnose it. But, I think that the problem may lie with the computer. Did the check engine light come on? Has the oxygen sensor ever been replaced? The car may be stuck in a rich mode allowing more gas to be consumed than necessary.
Bob, The Auto Answer Man
Have a car care question? Visit our automotive center and see if we've already answered it or a similar question.
Also in Home
- Ways to reuse an entertainment center
- The cost of using your clothes dryer
- Hay bale gardens
- Priortizing home repair projects
- Great ideas for decorating your entry on a dime
- Easy, inexpensive ways to grow from seed
- 10 ways to save money on your utility bill
- 5 simple and affordable luxuries for your home
- 5 frugal ways to expand your living space
- Top 10 DIY mistakes made by home 'handymen'
- 6 ways to save on home heating
- 7 ghastly critters that will eat your house
- Find the best mortgage rates in your area
- 3 ways to use a mortgage calculator
- Mortgage calculator: Calculate your payment and more
- Home equity calculator: HELOC vs. line of credit
- Mortgage refinance break-even calculator
- How much money can I borrow for a mortgage?
- Who offers the most home insurance discounts?