Engine hesitation


#1

I have a 99 Honda CR-V 5-speed manual. Mostly at low speed around

town, the engine seems to hesitate for less than a second, causing

the car to slow suddenly and then pick up again. The engine doesn’t

cut out, just hesitates. It does this several times in a row on one

journey, then might not do it again for a week. This has made it

impossible for the mechanic to diagnose. The plugs and plug wires

have been replaced to no avail. Help! I love this car but it is

making me crazy. During a ride when it is doing this thing I drive

with my foot hovering over the clutch so when it hesitates I can jam

my foot down to stop it lurching.


#2

Can only make guesses, but my suspicion is a fuel delivery problem.

Fuel filter? Dirty injectors? Weak fuel pump?


#3

The fuel filter was replaced. Can injectors be cleaned? What about the electronics that control ignition and fuel injection?


#4

Have your mechanic read the diagnostic steps at this website: http://www.tegger.com/hondafaq/faq.html Click on the type of problem category like: “Starting/running problems”.


#5

Thanks, that is a great resource. There are some tests I’ll run on the EFI main relay and the igniter tomorrow.