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Gro3Ghetta 4/25/2021

2001 Honda Civic LX 4 Cyl 1.70L


01 Honda civic hard starting

01 Honda civic lx 5spd 192k hard starting, when cold requires cranking for 30 secs. To 1 min. to start. After initial start will start easily for about 3 hrs then will be hard to start again. New timing belt, plugs,coils, cleaned injectors, replaced evap purge valves, cleaned throttle body and intake control valve compression great, leak down test good, computer not throwing codes, no lights. Any ideas?

1 Answer


Jimm 4/27/2021

First question - what is the fuel pressure measured? At the fuel pump and at the fel injectors / fuel rail?

Second question - what is the vehicle mileage?

Third - what is/are the individual cylinder compression test readings - dry and wet?

Next - what is the condition of these: air intake, filter and engine vacuum lines/hoses?

Berfore replacing any parts / extra cost $$ - test (scan for free) for stored fault codes which may not be displayed, and inspect for any engine vacuum leaks.

There are two (2) main reasons why a car wont start in severe cold weather; oil thickens (viscosity) when it's cold, which increases friction and makes it harder for the starter motor to spin the engine. Cold weather also slows the chemical reaction in your battery, reducing its power output.


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