engine FORD FESTIVA 1991 Service Manual

FORD FESTIVA 1991 Service Manual FESTIVA 1991 FORD FORD https://www.carmanualsonline.info/img/11/56935/w960_56935-0.png FORD FESTIVA 1991 Service Manual

Page 292 of 454

FORD FESTIVA 1991  Service Manual milliamps per division. Notice the dimple in the rising edge. This dimple indicates the actual opening of the injector (set point) occurred at 400 
milliamps and current peaked at 750 milliamps. This

Page 293 of 454

FORD FESTIVA 1991  Service Manual  
Fig. 13: Injector Bank w/Normal Current Flow 
- Current Pattern 
EXAMPLE #6 - CURRENT CONTROLLED DRIVER 
This next known-good waveform is from a Ford 5.0L V8 CFI VIN [F]. See Fig. 14
. The pattern,

Page 294 of 454

FORD FESTIVA 1991  Service Manual  
Fig. 16: Single Injector w/Excessive Current Flow 
- Current Pattern 
EXAMPLE #8 - CURRENT CONTROLLED DRIVER 
This known-good CPI system waveform from a GM 4.3L V6 CPI VIN [W] peaks at 4 amps and ho

Page 296 of 454

FORD FESTIVA 1991  Service Manual  
Fig. 20: Injector Bank 
- Known Good - Voltage Pattern 
EXAMPLE #3 - VOLTAGE CONTROLLED DRIVER 
This known-good waveform pattern, Fig. Fig. 21
, is from a GM 5.0L V8 TPI VIN [F]. It was taken during

Page 297 of 454

FORD FESTIVA 1991  Service Manual  
Fig. 22: Single Injector 
- Known Good - Voltage Pattern 
EXAMPLE #5 - CURRENT CONTROLLED DRIVER 
These two known-good waveform patterns are from a Chrysler 3.0L V6 VIN [3]. The first waveform, Fig.

Page 305 of 454

FORD FESTIVA 1991  Service Manual Back To Article 
GENERAL INFORMATION 
Manual Transmission Trouble Shooting 
* PLEASE READ THIS FIRST * 
INTRODUCTION 
There are many times when the transmission is incorrectly blamed for shifting prob

Page 306 of 454

FORD FESTIVA 1991  Service Manual Back To Article 
1991 GENERAL SERVICING 
A/C Com pressor Refrigerant Oil Checking 
ISOLATING COMPRESSOR 
1. Connect service gauge set to the compressor service valves and open compressor valves slight

Page 307 of 454

FORD FESTIVA 1991  Service Manual CALSONIC V5 5-CYLINDER
1. Before checking and adjusting oil level, operate compressor at 1000-1500 engine RPM, and set controls at maximum cooling and 
blowing speed for 20-30 minutes to return oil to

Page 308 of 454

FORD FESTIVA 1991  Service Manual 2. If more than one ounce is drained, add same amount. If less than one ounce is drained, add 2 ounces of new refrigerant oil to 
compressor.  
3. If A/C components are replaced, add refrigerant oil t

Page 309 of 454

FORD FESTIVA 1991  Service Manual article. Drain oil from compressor through suction and discharge ports. Measure amount of oil drained. If amount drained is more than 
2.4 ounces, fill with same amount using new oil. If amount draine