While at a stop light engine cuts off.

30

Asked by Jul 03, 2015 at 10:45 PM about the 1997 Land Rover Discovery 4 Dr SD AWD SUV

Question type: Maintenance & Repair

I have a 1997 land rover discovery 4.0l I have cleaned maf and iacv and cleaned throttle
body and new air filter fresh oil change and three tanks of gas with injection clean in each
fill up. Any help would be nice.

18 Answers

67,495

This sounds like a bad IAC unit,cleaning want help it.

1 of 1 people found this helpful.
30

I was afraid of that.

30

Check engine light never comes on either.

67,495

The IAC want throw a code.

1 of 1 people found this helpful.
67,495

Have you checked real good for vacume leaks,?

30

Yes I have checked good I even replaced several hoses just to ease my mind. Could the tps cause it along with IAC?

1 of 1 people found this helpful.
67,495

A TPS would make engine light come on,and throw a code,that is why i say bad IAC.

2 of 2 people found this helpful.
30

It idles good some times its really annoying to trace down the problem. I'm at wits end

30

Oh ok, I'll buy one after the holidays everything closed this weekend

1 of 1 people found this helpful.
19,530

I have another suggestion but let's go with T_S_T recommendations for now.

30

What's your idea?

19,530

Well since you have already cleaned throttle body and put in fuel injector cleaner and may have done this already but take your vehicle out on the road and hit the passing gear a few times that will help the injector cleaner clean the fuel injectors better and also help remove any gum and carbon build up. Just be careful no speeding ticket.

30

Lol yes I've done that plenty. I have a heavy foot. I was even think of the cats being the problem. But I'll try IAC first .

19,530

Does its shut off coming to a stop or when your are completely stopped ?

19,530

If it was a clogged catalytic converter you would also have loss of power vehicle not being able to go over 25 - 30 mph. If it cuts off coming to a stop you may also have a bad ( Toque Converter Clutch Solenoid ) .

30

It runs and drives great it just cuts off at stops but it starts right back up.

30

I hope its the IAC I'm going to buy one when the parts house opens back up Monday morning.

30

Turns out IAC and the tps fixed my problem thank you so much guys

1 of 1 people found this helpful.

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