in need of expertize......please
01-30-2009 | 01:33 PM
#1
Thread Starter
Newbie
Joined: Jan 2009
Posts: 1
Likes: 0
Model: Cherokee
in need of expertize......please
help...................my 90 chero cuts out when i barely touch gas pedal but if accerate hard or keep rpm above 2000 it runs great 4.0 automatic. replaced or checked cap,rotor,plugs and wires,erg valve,fuel filter and pump,vacuum lines,map sensor......................need help any suggestions would be great
01-30-2009 | 01:38 PM
#2
Renix Super Guru
Joined: Mar 2008
Posts: 24,653
Likes: 19
From: In yourz postez fissin jurr spelinzs
Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Check the IAC and clean it. Then you can determine if there are problems with the TPS as well
Try here http://www.lunghd.com/Tech_Articles/...iagnostics.htm
Try here http://www.lunghd.com/Tech_Articles/...iagnostics.htm
Last edited by BlueXJ; 01-30-2009 at 01:42 PM.
01-30-2009 | 01:54 PM
#4
CF Veteran
Joined: Nov 2008
Posts: 6,989
Likes: 4
From: Oak Harbor, WA.
Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
I cuncur with what Blue and 01XJsport say. Also, I know you said you checked it but, Check again ALL vacuum lines. This symptom you are having is so typical of a bad vacuum leak or a bad fuel pump.