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SUVs Isuzu Rodeo Isuzu Rodeo
2255 messages, Last post on Nov 17, 2009 at 5:00 PM
You are in the Isuzu Rodeo Forum. Your Hosts are steve_ & tidester
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Hi, this is my first posting and I need help! My 2002 6-cyl / 3.2L Rodeo now has 62,000 miles on it. At about 40,000 miles, my check engine light began coming on and staying on. After several visits to a somewhat local Isuzu dealer here in Chicagoland, no one can find the problem. The dealer has cleaned the fuel injectors, installed a new engine harness, but I still go through a quart of oil every 200-miles! Now I find out that the Isuzu Rodeo has a history of oil seal leakage - oil seals that are defective. I even had a routine oil change (I change the oil every 90 days), filled the Rodeo with 5 new quarts of oil and was empty 4 days later. The dealer can't find the problem and won't admit that there is a warranty issue. This has dragged on since August 2004. Now the Rodeo has 62,000 miles on it and the dealer says he cannot help me because of the 60,000-mile warranty. This isn't right and it's certainly poor customer service. Any thoughts from the forum members?
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Replying to: coopster (Jun 13, 2005 12:26 pm) Thanks... |
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Replying to: jcb2 (May 07, 2006 7:00 pm) |
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Hello. New member here. I have a 2002 Isuzu Rodeo Sport (58K miles). Recently I noticed the truck had a hard time shhifting up from 1st gear. The RPMs would spike up and then it would run just fine. The other night the trans light kept blinking. When i went to take it to the shop the next day I found that it would go on drive, but it won't move on reverse. Before i have to go and sell my soul to pay for a new transmission, any ideas as to what the problem may be? Thanks!
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I'm having a problem with my 2000 isuzu rodeo. It all started when the CEL came on along with the transmission light flashing on and off. Took it the MEchanic and did a check found out several things. The code P401 came on which states that there is a EGR flow problem. But i had the same proble 1 1/2 years ago. Can I clean the valve myself? The second code staes that the transmission component is slipping. HAve no idea what thats about. Can anyone help me with this. Thanks 
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Replying to: eryn (May 16, 2006 2:33 pm) http://www.carspace.com/atfdmike/.59a45120!v= The only reliable way to check the EGR valve itself is with a Tech 2 diagnostic tool, which monitors the electronic activity commanding the valve and the feedback from the valve. Depending on your desire, you can remove the EGR carefully and take care in doing so to not damage the gasket. Then you could carefully wire brush the pintle (moving) part of the valve itself. The orifice that the valve controls will also be accessible, and again, if you have the right brush you can remove some of the accumulated carbon. It can be awkward and you have to take care to remove as much of the debris as possible. A Vacuum will help. Once you bolt it back together,(being sure to reinstall it in the same position you removed it) if the problem is fixed then the code will clear itself after a number of ignition cycles, if you don't clear them using a tech 2 or removing the negative battery cable for a period of time. You don't give the Transmission Code, so it is difficult to give any indication of what it means, and slipping can also feel like surging, which may or may not be trans related. Supply the code and maybe more info will become available. Good Luck |
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Replying to: atfdmike (May 17, 2006 8:46 am)
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Replying to: hikick1 (May 17, 2006 7:17 pm) 1992 Isuzu Truck Rodeo (2WD) V6-3137cc 3.1L (CPC) Vehicle Level Powertrain Management Computers and Control Systems Testing and Inspection Displaying & Reading Trouble Codes Displaying & Reading Trouble Codes ALDL/DLC Connector SYSTEM OPERATION If a problem develops in a monitored system with the engine running, the "Check Engine" light will come "ON" and a trouble code will be stored in ECM memory. As long as a problem is present, the light will remain "ON" while the engine is running. If the problem is intermittent, the light will go out but a trouble code will be stored in ECM memory. As a bulb check, the "Check Engine" light will come "ON" with the ignition switched "ON" and the engine not running. If no codes are present, the light will go out upon starting the engine. If the light remains "ON," the system has detected a fault. To allow checking circuits which may be difficult to energize without driving the vehicle and being under particular operating conditions, all ECM controlled relays and solenoids (except fuel pump relay) are energized in Diagnostic mode. Note that many electronic engine control tests require the use of a "Scan" tool. Field Service Mode If the diagnostic terminal is grounded with the engine running, the system enters Field Service mode and the "Check Engine" light will indicate whether it is in "Open Loop" or "Closed Loop." In "Open Loop," the light flashes two and one half times per second. In "Closed Loop," the light flashes once per second. If the system is running lean while in "Closed Loop," the light will stay "OFF" most of the time. Conversely, it will stay "ON" most of the time if the system is running rich. While in Field Service mode, the ECM will not store new trouble codes. Extracting Trouble Codes The "Check Engine" light displays trouble codes that are stored in ECM memory. To activate the Diagnostic mode, a special connector located in the center console is utilized. There is a conflict in the manual on this, as it also says it is located where you have looked previously. When the ALDL (assembly line diagnostic link) connector is jumpered between terminals "A" and "B" with the ignition "ON" and the engine not running, the light will flash any stored codes. Here is diagram of aldl: http://www.carspace.com/atfdmike/.59a46397!v= The first code to display should be code 12. This indicates that the self-diagnostics are functioning and is not a trouble code. The code 12 display is a flash followed by a short pause, then two flashes followed by a longer pause. If other codes are present, they will display in the same manner after code 12 has flashed three times. For example, the code 23 display is two flashes followed by a short pause, then three flashes followed by a longer pause. Each stored code is displayed three times, starting with the lowest in numerical order. Code 12 will repeat when all codes have shown. If no codes are stored, code 12 will display repeatedly until Diagnostic mode is exited by removal of the ALDL jumper wire. Remove the jumper wire before attempting to start the engine. INTERMITTENT "CHECK ENGINE" LIGHT "Intermittent" means that the "Check Engine" light may come on at times but does not stay on. Since codes may or may not be stored, the use of diagnostic charts could result in replacement of good parts. Most intermittent problems are caused by faulty electrical wiring or connections. Carefully check these potential causes: Poor mating of connector halves or terminals not fully seated in connector body. Deformed or damaged terminals. All connector terminals in problem circuit should be carefully reformed to increase contact tension. Poor terminal-to-wire connection. This requires removing terminal from connector body to properly check. Poor ground connections. If a visual check does not find the source of the problem, the vehicle may be driven with a voltmeter connected to a suspect circuit. An abnormal voltage reading when the problem occurs indicates the problem may be in that circuit. If wiring and connectors check okay and a code was stored for a circuit having a sensor (except codes 44 and 45), substitute a known good sensor and recheck. Loss of ECM trouble code memory. To check, disconnect throttle position sensor and idle engine until "Check Engine" light comes "ON." Code 22 should be stored in memory for at least 10 seconds after ignition is turned "OFF." If not, the ECM is faulty. An intermittent "Check Engine" light with no stored code may be caused by: Arcing at ignition coil, plug wires or spark plugs. EST wires should be routed away from spark plug wires, ignition system components and alternator. Poor power supply circuit connections. "Check Engine" light wire to ECM shorted to ground (circuit BLU/PNK 03). Diagnostic test lead to ECM shorted to ground (circuit 451) Poor ECM ground connections. Electrical system interference caused by a defective relay, ECM driven solenoid or switch. These problems cause an electrical surge and normally occur when the faulty component is operated. Improper installation of accessories such as lights, sound systems, alarms, etc. Hope this helps!
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Replying to: atfdmike (May 18, 2006 4:20 am) Thank you Supertech, Audrey |
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Hi group, The repair manual states and shows diagrams of the ALDL harness to check computer codes at home. I cannot see this harness. Has anyone seen the harness? The book says under driver side dash to the left. Here is a pic set by atfdmike of the diagram from the book. http://www.carspace.com/atfdmike/.59a46397!v= This Rodeo has had almost everything replaced so feel free to post questions..
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