Question about 1986 Alfa Romeo Spider

1 Answer

Ugh idling on a 2001 saab 95 - throttle body?

The car runs well except when idling at lights or in traffic and occasionally on cruise at say 110Km/hr. During the rough idling the engine misses and coughs perhaps missing on several cylinders and nearly dies. It seems to be worse on short journeys in summer and when it gets hot in traffic. The computer shows no fault and the idle speed has been lifted to no affect. It does seem to be getting progressively worse. Can you help.

Posted by on

  • jqcfkc Mar 07, 2009

    localwonder - thanks for the advice. Checking the internet suggests 9 possible causes (vacuum pipes, Direct ignition unit(DI), Throttle body (TB), mass air flow sensor, low oil pressure sensor, O2 ensor, fuel pump, Coolent temp sensor, Map sensor (what ever that is) idle air control valve. Yours is a new one. I will go armed to my mechanic tomorrw! But cam't possibly replace one after the otheruntil its fixed, where do you start? Cheers.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 6,784 Answers

Hi, the valve springs are bad in this vehicle. this is causing the misfire. this is quite hard for the CPU to pick up. normally, the cam sensor will at times.

Posted on Mar 07, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Limp mode in saab 95


Have charging system checked.Some cars will not idle right if alternator is out.

Jan 06, 2014 | 1999 Saab 9-5

1 Answer

Fast idle sometimes, normal idle sometimes. 2001 Chev Venture 3.4. engine runs fast enough to hold 50mph with throttle closed. Cruise control is disconnected as I thought it might be that. What's...


Vacuum leak somewhere? I remember the older 4.3 TBI (pre 97) when the throttle body base gaskets would develop a leak the idle would go sky high.

Aug 26, 2011 | Chevrolet Venture Cars & Trucks

2 Answers

Vehicle stalling at traffic stop like im about to run out of gas


Start with the simple and replace your fuel filter and clean your throttle body, When cleaning your throttle body pay attention to your IAC (Idle Air Control) valve passage way with is located on the back side to your throttle body air intake barrel.
Just follow the instructions on the spray can of throttle body cleaner and be safe. This should address your stalling issues from a dirty IAC valve.
Thank you for suing Fixya and be safe.

Apr 18, 2010 | 1996 Chevrolet Blazer

2 Answers

2003 yukon stalls in traffic


sounds like a spark timing issue. dist/coils or plugs. the only other thing and this is weird-the coolant temp sensor

Oct 08, 2009 | 2003 GMC Yukon XL

1 Answer

On my 2001 olds aurora 4 liter engine when I come to stop at traffic light low oil pressure light comes on until I bring RPM's up,is there a way to increse idling?


Sounds like your oil pump is bad - I'd have that checked. You can adjust throttle via the screw on the throttle line (look for the intake and there should be somthing resembling a bicycle cable going to the round throttle body). Tighter = higher idle. Fix the cause as soon as possible as this can destroy your engine quickly.

Aug 06, 2009 | 2001 Oldsmobile Alero

1 Answer

Myster Diagnosis?!


spray fuel into the throttle body and see if it stays running,then if it does ,suspect your fuel pump.
here are some other possibilities,and what you should do is a scan to see what code triggered the check engine light.....iac(idle air controller),throttle position sensor,crank or cam sensor,plugged catalytic converter,defective air flow meter,bad ignition module

Jul 23, 2009 | 2008 Saab 9-5

1 Answer

Car cuts out in traffic


check your fuel pump or its sensor in his way.

Apr 06, 2009 | 1999 Saab 9-5

4 Answers

2003 Saab 9-5 Aero- Idling problem


Sounds like car is in limp home mode which needs reseting ,which may indicate you need a new Di Rail, or throttle body. Is engine management light on all the time if so Needs reseting. Hope this helps.

Sep 29, 2008 | 1999 Saab 9-5

1 Answer

Taurus will not idle but runs fine at cruise


idle air control valve defect or egr valve stay open clean throttle body with air intake cleaner sometime its a bit hard to start after its normal and for egr valve gently tape it hope it help you fixya our post thanks pierre

Jul 12, 2008 | 2001 Ford Taurus

1 Answer

Stalling no idle


Hi,if you want to now where is a leak ,start the car if is possible and spry the hosing pipes wen suddenly rpm increase you now where is the problem or ken be the trottle body!

Jun 13, 2008 | 2001 Saab 9-3

Not finding what you are looking for?
Cars & Trucks Logo

524 people viewed this question

Ask a Question

Usually answered in minutes!

Top Alfa Romeo Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

yadayada
yadayada

Level 3 Expert

61249 Answers

Fabrice Wolters

Level 2 Expert

162 Answers

Are you an Alfa Romeo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...