Question about 1989 Toyota Corolla

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1989 corolla 4af carburetor engine leaking fuel on the manifold and is having a rough idle. What could be the problem?

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Try to tighten the fuel line that goes into the Carb. idle could be a vacuum leak or the loss of fuel pressure do to the fuel leak.

Posted on Nov 10, 2019

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  • Toyota Master
  • 5,911 Answers

Base gasket, fuel line connection, throttle plate bushings, cracked float bowl .

Posted on Nov 10, 2019

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Posted on Jan 02, 2017

milespeed

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SOURCE: Service Engine Soon Light and Rough Idle (Below 1200 rpms)

do you get check engine codes?..have you done a leak down test and compression test to determine mechanical engine health?

Posted on Oct 07, 2008

BILL RICHARDSON

  • 508 Answers

SOURCE: 1985 f150 rough idle

An exhaust manifold leak would not case it to run rough. Check vacuum lines that go to the in take manifold. If you have a line that is open it will get too much air at idle and cause a misfire intermittently. You also need to check plug wires. How long have the plugs been in the heads. Check the rotor and cap also.

Posted on Feb 18, 2009

frenchy1954

Pascal Savin

  • 115 Answers

SOURCE: my Toyota Corolla 4af 16 valves GLS 1989 model

check cam or crank senso if distributorless ignition if as distributor check rotor or cap for moisture or cracks

Posted on Aug 28, 2010

emissionwiz

Marvin

  • 85223 Answers

SOURCE: what is the best fit spark plug for toyota corolla

The best plug is the OE (Orig equip.)
DENSO Part # 3119 O.E. Manufacturer / Resistor Plug With Patented U-Groove Design
Gap=.032"

Posted on Dec 09, 2010

Randy

  • 369 Answers

SOURCE: 2003 ford windstar runs rough won't idle. plugs,

Possibly but check the map sensor as this will also cause this try disconnecting it if it idles and doesnt die then youve found your problem als be a good idea to check the codes and see what they are telling you let me know something good luck.

Posted on Dec 23, 2010

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2 Answers

Starts and idles rough then dies


Check for vacuum leaks eg. PVC hose power booster and hoses around manifold area.

Jul 28, 2014 | 1989 Ford F 150

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Engine runs rough and gets worse when accellerating


PROBLEM TROUBLE AREA
Rough idle, stalls or
hesitate on acceleration :
.Spark plug faulty
. High-tension cords faulty
Ignition problems:
• Ignition coil
• Igniter
• Distributor
. Incorrect ignition timing
Vacuum leaks:
. PCV valve and line.. .
. EGR line..
. Intake manifold.
• Throttle body
• ISC valve
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• Throttle body
• Brake booster line
. Incorrect idle speed
. Reset timing
. Adjust valve clearance
. Check fuel system . Check air cleaner
. Incorrect valve clearance
. EFI system problems
. Low compression


Dec 12, 2013 | 1989 Toyota Camry

1 Answer

The sign of low idle


The low idle speed is concerned with:
- Pilot jet, idle solenoid (Conventional carburetor type engines),
- Carbon fouled throttle body, idle air control valve, weak cylinder compression, contaminated fuel, vacuum leak, intake manifold leak, ignition system and faulty ECU.

Oct 07, 2013 | 1990 Toyota Corolla

1 Answer

I am facing a problem with my toyota corolla 1989, it backfires, frequent engine shutdown mostly when the engine is hot but not overheating, i already replace my ignition coil, adjust timing and cleaned my...


Sounds like an intake manifold leak. Once the manifold gets hot the gasket leaks. I would check that first and the head gasket second. Are you getting any smoke, hesitation at all?

Feb 11, 2011 | 1989 Toyota Corolla 2 Door

1 Answer

MY IS IDOLING VERY FAST NEED TO USE BOTH FEET TO KEEP CAR FROM MOVING FORWARD FAST


IF YOU HAVE CARBURETOR. IDLE SPEED TOO HIGH NEED ADJUSTING. CHECK ACCELERATOR LINKAGE OR CABLE COULD BE IN A BIND CAUSING HIGH IDLE SPEED.MAKE SURE THE ACCELERATOR PEDAL FLOOR MAT NOT IN THE WAY.CHECK CARBURETOR MOUNTING BOLTS.RETIGHTEN TO MAKE YOU DONT HAVE A VACUUM LEAK BETWEEN CARBURETOR GASKET AND INTAKE MANIFOLD THAT WILL CAUSE HIGH IDLE SPEED.IF YOU HAVE FUEL INJECTION ENGINE LET A GARAGE SET THE TIMING AND IDLE.

Nov 22, 2010 | 1988 Toyota Corolla 4 Door

1 Answer

Got a chevrolet pick up 1989 year 5.7L engine,it


CHECK THE CARB OR TDI MOUNTING BOLTS FOR TIGHTNESS OR CARB OR TBI GASKET LEAKING.COMPRESSION ACCEPTABLE YOU STILL HAVE INTAKE MANIFOLD LEAK. STOP UP FUEL FILTER.WEAK IGNITION COIL.WORN CAMSHAFT.

May 29, 2010 | 1989 Chevrolet C/K 2500

1 Answer

Wanna change the engine in my ae92 corolla.


There are many different types of 4a engines including 4a 4af 4age 4agze but the 5a is a 1.5 8v engine the 4a is a 1.6 usually a 16v. a 4age is a 1.6 16v gti engine that produces 129bhp depending on year later models had a little more. both engines are fuel injected and were produced for roughly the same period of time. from my experience a 4age goes on for ever. hope this helps

Jan 06, 2010 | 1989 Toyota Corolla 2 Door

3 Answers

89chevy truck runs roughly


Isn't it fuel injected? More likely:
Pull plug wires one at a time, the one that has no effect isn't firing. Bad plug or wire.

Aug 25, 2009 | 1985 Honda Prelude

2 Answers

Very rough idle


Check all vacuum hoses for leaks, check cap rotor wires and coil for arcing.

Jun 15, 2009 | 1989 Jeep Wrangler

2 Answers

Carburator pipes


As I know there is a vacume pipe from engine to carburetor, this vacume pipe is installed on top of engine cover to under carburetor (between carburetor and the inteke manifold).

Aug 27, 2008 | 1990 Toyota Corolla

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