1993 Ford Bronco Making Noise - General

Question: Hello, I have been puzzled by my 1993 Bronco 302 E4OD pinging problem. This vehicle has been well maintained and has 125, 000 miles with no unusual engine noises at idle or acceleration with no load and lots of new components EGR valve, EVP sensor, 2-EGR Solenoids, EGO sensor, Idle Air By-Pass valve, all tune up parts, complete performance exhaust system from heads back, new transmission K & N filter, timing is on, doesn't use oil.I have tried various gasolines grades from top name companies, I use 93 octane Sunoco. Problem: When I apply light throttle acceleration I can hear a slight pinging, and under medium to hard acceleration it gets worse and sounds the worst when the transmission shifts into each gear, and also there is a very noticeable loss in power when climbing slight and steep grades. I have had several dealers check the vehicle and it has no codes and knowbody can figure this out. I have been thinking crankshaft dampener moving or timing chain worn, but maybe it could be Fuel Pressure Regulator, TP sensor, MAP sensor, Air charge sensor........I'm stumped! Any advise would be helpful at this point...can you help? Sincerely, Kevin Hoffman

Here's How To Get Guaranteed Solutions In Minutes

Technican: Kevin, First we need to break this problem down to find which field it is in. First, disconnect the vacuum hose to the EGR valve, make a test drive and see if it is better. If so, then it is an EGR flow problem, perhaps carbon clogged passages. If it is the same, remove spark plug number 1 and with a helper set the piston at TDC, (you can feel this with a screwdriver). Then check that the timing marks are on TDC also. If not, rpelace the damper. If ok, set the timing with a timing light on the proper specifications. If this is OK, try an upper engine cleaner such as GM top engine cleaner. This works best sprayed or poured in the intake until the engine stalls, then leave it overnight, start it in the morning and take it for a hard drive to blow the carbon out. Try high test gas, 93 octane and see if the problem is resolved. This should point you in a useful direction to find the solution.

Here's How To Get Guaranteed Solutions In Minutes

More Bronco Answers

Home

Ford Answers

Aerostar
Aspire
Bronco
Bronco II
Club Wagon
Contour
Country Squire
Crown Victoria
E 150
E 250
E 350
Econoline
Escort
Expedition
Explorer
F 100 Pick up
F 150 Pick up
F 250 Pick up
F 350 Pick up
Falcon
Festiva
Fiesta
Focus
Granada
LTD
Lightning Pick up
Mustang
Mustang Convertible
Mustang GT
Mustang Mach I
Mustang Notchback
Mustang Sedan
Probe
Ranger
Ranger Pick up
Sedan
Taurus
Tempo
Thunderbird
Touring
Windstar
ZX2
a_old

Home

template