96 Land Rover Disco power and idle issues

peteypablo75
0

Asked by May 24, 2013 at 09:34 AM about the 1996 Land Rover Discovery 4 Dr SD AWD SUV

Question type: General

I'm having power issues vehicle acts as if theres a short, one minute it has power then the next minute nothing then without doing anything the power is restored and this is while vehicle is just sitting there. My other issue is once I have power and can start the car the RPMs race to 3000 and take forever to idle down and once I'm driving the problem persists any suggestions?

1 Answer

Lars Cats
4,125

Your electrical fault may need some more info to fix: exactly what is happening under which circumstances and what actions do you take the moment it happens. Idle is controlled by two main parts: the Idle Air Control Valve (IACV) and the Throttle Position Sensor (TPS). If the TPS is messed up, the ECU will go into limp mode and speed up the engine idle to keep it driveable to a place of repair. If the IACV doesn't close the idle air bypass on the throttle body, the engine will idle faster than normal due to lack of control of the air flow into the engine. Alternatively the throttle cable may be sticking, which is a lot easier to diagnose and fix.

Your Answer

Add photo

Related Questions

Search Land Rover Discovery Questions

Land Rover Discovery Experts

#1 Simon Briggs
Simon Briggs
Reputation 300
#2 chassy
chassy
Reputation 280
#3 Matt Mankinen
Matt Mankinen
Reputation 260
View All

Related Models For Sale

Used Land Rover Range Rover"
71 Great Deals out of 4,239 listings starting at $5,680
Used Toyota Land Cruiser"
13 Great Deals out of 644 listings starting at $3,995
Used Jeep Wrangler"
616 Great Deals out of 54,850 listings starting at $1,500
Used Toyota 4Runner"
221 Great Deals out of 13,102 listings starting at $2,000
Used Jeep Grand Cherokee"
783 Great Deals out of 67,083 listings starting at $900

Used Cars For Sale