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2002 Land Rover Discovery starts but idles rough. accelerates but bucks at cruising speed. solid service engine light at a stop. flashing service engine light when moving....it feels like it's loading up/fuel air mixture ?? any suggestions
Re: 2002 Land Rover Discovery starts but idles rough....
BAD spark! check plugs wires and coil packs. the wires are a real pain to replace because of the location of the coil packs between the intake manifold and firewall.
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run the fault codes and look for a faulty torque converter clutch solenoid /servo and a problem TCM unit. A service if not done in the last 60.000 miles would also help.
The ignition system is controlled by the ECM. Check power at fuse box in on right side under dash. Check fuses right side engine compartmentlower dash panel if all OK check power to ECM located right side "A" pillar in alloy box. this unit could be faulty if no spark at coils, assuming they have been connected correctly. may have to get tested for codes at L/R dealer or someone with test tool. Another source of problem may well be flat battery in transponder key. The indicator light on the dash willflash rapidly for 10 seconds if the vehicle has been unlocked with the remote and the drivers door is opened if the battery in remote is getting low
i have same probleme with my land rover, this trouble is intermitant wath can i do abs light traction control andhill descent if you have he ansher for me [email protected] thank you
The second cable should be for cruise control. Your problem sounds like either a vacuum leak (air entering the engine unmeasured by the air sensor), or fuel vapor in the fuel rail. A vacuum leak can be determined by spraying starting fluid at the air intake hoses, plenum,and connections while the engine is idyling and noting where the engine accelerates to determine where the vacuum is leaking (unmetered air is entering) from. Tighten or replace gasket,hose,seals etc. Bleed the air on the fuel rail if needed with care.
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