QUESTION MISSES ON ACCELERATION

1994 Isuzu Rodeo

Tiny

Zhmmy

September, 20, 2009 AT 5:58 PM

Engine Performance problem
1994 Isuzu Rodeo Question 6 cyl Two Wheel Drive Manual 122000 miles

This is a 3.2 fuel injected V6 with electronic ignition. Engine ran nicely one second while accelerating, and instantly started running rough.

Speedometer occasionally falls to zero then returns to correct speed after awhile, sometimes immediately. 'Check Engine' light occasionally comes on momentarily. Engine seems to run smooth after reaching 'equilibrium' in any gear, but misses when trying to accelerate.

I've replaced the fuel filter and spark plugs and checked the fuses, but no improvement.

FOUND 1150 RELATED QUESTIONS

2 Answers

Tiny

rasmataz

September, 20, 2009 AT 6:16 PM

Check engine light on, pull the code/s from the computer this is your starting point finding out what's going on.

Could be one of the following below

Oxygen sensor
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

Tiny

Pegasus72

July, 9, 2012 AT 12:54 AM

I have picked up Heli Coils because I did not know the cylinders had previously been stripped. I need to know the best way to insert them.

Please login or register to post a reply.

Code Read Retrieval/Clear Chevrolet Camaro
Code Read Retrieval/Clear Mercedes-Benz C230
Read Codes Like a Pro
How to read codes Chevrolet Blazer
How to gather codes Ford Explorer
Code Read Retrieval/Clear - Dodge Stratus
 Step by Step video GMC Yukon XL 2000-2006
Code Read Retrieval/Clear Scion XD