1995 Toyota Corolla Corolla Won't Run right

Tiny
JAKEMEDIC
  • MEMBER
  • 1995 TOYOTA COROLLA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
Good Day,
My corolla won't run right. Started after a 100 mile highway trip, it simply would not start. Checked spark, and fuel and compression. Replaced fuel pump, fuel filter and fuel pressure regulator. Now I can get it to run after cranking a long time and jumping it. Will run well or at least reasonably well for a little while. HELP! I am about to take it to a mechanic. Jake
Wednesday, October 22nd, 2008 AT 5:55 AM

5 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
What quality of spark do you have? When you test it, the spark should be blue and bright, if it is weak and orange you may have a weak coil. Have you verified fuel pressure with a manual gauge?
Was this
answer
helpful?
Yes
No
Wednesday, October 22nd, 2008 AT 8:03 AM
Tiny
JAKEMEDIC
  • MEMBER
  • 3 POSTS
The spark was indeed bright. I put new spark plugs in as well. While I did not pressure test the fuel pressure, I did replace the fuel pump, fuel filter and fuel pressure regulator. I did attempt to get codes out of it, and all I get is that there are no codes to be gotten. I can get it started and it will run, for a little while anyhow. Then it goes back and has the same symptoms as before all the work. Could it be a voltage problem which limits fuel via the fuel pump? Generally when it acts up, I can jump it and get it to run. Other than at idle, or at low speeds, it runs well, when it wants to run that is. Thanks!
Was this
answer
helpful?
Yes
No
Wednesday, October 22nd, 2008 AT 9:37 AM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Could be a voltage problem. Is the alt putting out enough? Should be 13+volts at idle
Was this
answer
helpful?
Yes
No
Wednesday, October 22nd, 2008 AT 10:15 AM
Tiny
JAKEMEDIC
  • MEMBER
  • 3 POSTS
How would I measure that? Can I measure battery voltage to accomplish this? Please let me know. Thanks!
Was this
answer
helpful?
Yes
No
Wednesday, October 22nd, 2008 AT 10:37 AM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Use a voltmeter at the battery. Measure voltage idling with nothing extra on. Then measure with headlights and a/c on.
Was this
answer
helpful?
Yes
No
Wednesday, October 22nd, 2008 AT 3:26 PM

Please login or register to post a reply.

Sponsored links