1998 Ford Escort Car Hesitates on acceleration

Tiny
JOHNNY1963
  • MEMBER
  • 1998 FORD ESCORT
  • 4 CYL
  • FWD
  • MANUAL
  • 114,000 MILES
Car starts and Idles fine. Runs good at lower speeds. If we try to accelerate to past 40 mph the engine seems to be losing power under load. We can rev engine at a stand still with no issues. This is a 5 speed manual transmission.
and thought it may be the clutch but it is not. We do not get an increase of rpm when accelerating. We have no check engine light and our neighborhood auto zone does not detect any error messages. We where going to try and replace the EGR valve but can't seem to locate. Engine is a 2.0 liter DOCH Ze tech. We also thought it was the mass air flow sensor but found that Ok as well. Any help or suggestions would be great
Do you
have the same problem?
Yes
No
Tuesday, March 17th, 2009 AT 4:38 PM

3 Replies

Tiny
RASMATAZ
  • MEMBER
Engine hesitation can be caused by the following:

Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
Was this
answer
helpful?
Yes
No
+1
Tuesday, March 17th, 2009 AT 4:56 PM
Tiny
BOGONE
  • MEMBER
It could also be a partially plugged catalytic converter.
Was this
answer
helpful?
Yes
No
+1
Tuesday, March 17th, 2009 AT 5:02 PM
Tiny
AJABLE
  • MEMBER
I had a similar problem with my 98 ford escort and found out after changing the fuel filter that my fuel pump was going out and that one of my spark plugs was bad so it was misfiring also.
Was this
answer
helpful?
Yes
No
+1
Friday, May 1st, 2009 AT 10:56 AM

Please login or register to post a reply.

Recommended Guides