# Diagnose a car problem. **URL:** \ **Category:** Factual Questions\ **Created:** [May 12, 2007, 6:42am UTC](https://boards.straightdope.com/t/diagnose-a-car-problem/403817 "2007-05-12T06:42:52Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![pool](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pool/32/4152_2.png) [@pool](https://boards.straightdope.com/u/pool)\ **Post date:** [May 12, 2007, 6:42am UTC](https://boards.straightdope.com/t/diagnose-a-car-problem/403817/1 "2007-05-12T06:42:52Z")
Recently I changed the oil in my car though I think that is incidental and not related to the problem. Not long after I noticed that my car, if accelerating from a full stop is shaking as if it will stall out but after I get out of 1st and 2nd gear around 40 mph it drives fine. But whenever I make a full stop and get going again it does the shaking thing. What could the problem be? ---
**Author:** ![A.R.Cane](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@A.R.Cane](https://boards.straightdope.com/u/A.R.Cane)\ **Post date:** [May 12, 2007, 8:21am UTC](https://boards.straightdope.com/t/diagnose-a-car-problem/403817/2 "2007-05-12T08:21:54Z")
WAG, you’ve got a bad plug, or two, or bad plug wires. Could also be a vacuum leak. ---
**Author:** ![Rick](https://avatars.discourse-cdn.com/v4/letter/r/9f8e36/32.png) [@Rick](https://boards.straightdope.com/u/Rick)\ **Post date:** [May 12, 2007, 1:18pm UTC](https://boards.straightdope.com/t/diagnose-a-car-problem/403817/3 "2007-05-12T13:18:55Z")
So is this problem on your 1962 Borgward or your 06 Rolls Canhardly? 😕 I can think of several things that might be an issue, but depending on the year make or model, some would apply and others would not. ---
**Author:** ![pool](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pool/32/4152_2.png) [@pool](https://boards.straightdope.com/u/pool)\ **Post date:** [May 13, 2007, 6:25am UTC](https://boards.straightdope.com/t/diagnose-a-car-problem/403817/4 "2007-05-13T06:25:10Z")
97 Toyota Celica. Like I said after I get out of first and second gear it stops shaking and it also does not shake at all in reverse, I also noted an odd odor when I used the AC.